In a nod to the evolving threat landscape that comes with cloud computing and AI and the growing supply chain threats, Microsoft is broadening its bug bounty program to reward researchers who uncover threats to its users that come from third-party code, like commercial and open source software,

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A Strategic Shift in Bug Bounty Security Incentives 

Industry Reaction and Expected Impact 

Overview On December 10, NSFOCUS CERT detected that Microsoft released the December Security Update patch, which fixed 57 security issues involving widely used products such as Windows, Microsoft Office, Microsoft Exchange Server, Azure, etc., including high-risk vulnerability types such as privilege escalation and remote code execution. Among the vulnerabilities fixed by Microsoft’s monthly update this […]

The post Microsoft’s December Security Update of High-Risk Vulnerability Notice for Multiple Products appeared first on NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks..

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High-Risk Vulnerabilities Fixed in Patch Tuesday December 2025 Update

High-Severity Office, Copilot, SharePoint Vulnerabilities also Fixed

• CVE-2025-62549, a Windows Routing and Remote Access Service (RRAS) Remote Code Execution vulnerability
• CVE-2025-62550, an Azure Monitor Agent Remote Code Execution vulnerability
• CVE-2025-62456, a Windows Resilient File System (ReFS) Remote Code Execution vulnerability
• CVE-2025-64672, a Microsoft SharePoint Server Spoofing vulnerability

• CVE-2025-64671, a GitHub Copilot for Jetbrains Remote Code Execution vulnerability
• CVE-2025-62557, a Microsoft Office Remote Code Execution/Use After Free vulnerability
• CVE-2025-62554, a Microsoft Office Remote Code Execution/Type Confusion vulnerability

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The Tech Field Day Exclusive with Microsoft Security (#TFDxMSSec25) spotlighted one of the most aggressive demonstrations of AI-powered security operations to date. Microsoft showcased how Sentinel’s evolving data lake and graph architecture now drive real-time, machine-assisted threat response. The demo of “Attack Disruption” captured the promise—and the unease—of a security operations center where AI acts..

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At a recent Tech Field Day Exclusive event, Microsoft unveiled a significant evolution of its security operations strategy—one that attempts to solve a problem plaguing security teams everywhere: the exhausting practice of jumping between multiple consoles just to understand a single attack. The Problem: Too Many Windows, Not Enough Clarity Security analysts have a name..

The post Microsoft Takes Aim at “Swivel-Chair Security” with Defender Portal Overhaul appeared first on Security Boulevard.

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Microsoft has lowered sales growth targets for its AI agent products after many salespeople missed their quotas in the fiscal year ending in June, according to a report Wednesday from The Information. The adjustment is reportedly unusual for Microsoft, and it comes after the company missed a number of ambitious sales goals for its AI offerings.

AI agents are specialized implementations of AI language models designed to perform multistep tasks autonomously rather than simply responding to single prompts. So-called “agentic” features have been central to Microsoft’s 2025 sales pitch: At its Build conference in May, the company declared that it has entered “the era of AI agents.”

The company has promised customers that agents could automate complex tasks, such as generating dashboards from sales data or writing customer reports. At its Ignite conference in November, Microsoft announced new features like Word, Excel, and PowerPoint agents in Microsoft 365 Copilot, along with tools for building and deploying agents through Azure AI Foundry and Copilot Studio. But as the year draws to a close, that promise has proven harder to deliver than the company expected.

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I can take or leave some of the things that Microsoft is doing with Windows 11 these days, but I do usually enjoy the company’s yearly limited-time holiday sweater releases. Usually crafted around a specific image or product from the company’s ’90s-and-early-2000s heyday—2022’s sweater was Clippy themed, and 2023’s was just the Windows XP Bliss wallpaper in sweater form—the sweaters usually hit the exact combination of dorky/cute/recognizable that makes for a good holiday party conversation starter.

Microsoft is reviving the tradition for 2025 after taking a year off, and the design for this year’s flagship $80 sweater is mostly in line with what the company has done in past years. The 2025 “Artifact Holiday Sweater” revives multiple pixelated icons that Windows 3.1-to-XP users will recognize, including Notepad, Reversi, Paint, MS-DOS, Internet Explorer, and even the MSN butterfly logo. Clippy is, once again, front and center, looking happy to be included.

Not all of the icons are from Microsoft’s past; a sunglasses-wearing emoji, a “50” in the style of the old flying Windows icon (for Microsoft’s 50th anniversary), and a Minecraft Creeper face all nod to the company’s more modern products. But the only one I really take issue with is on the right sleeve, where Microsoft has stuck a pixelated monochrome icon for its Copilot AI assistant.

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Zork, the classic text-based adventure game of incalculable influence, has been made available under the MIT License, along with the sequels Zork II and Zork III.

The move to take these Zork games open source comes as the result of the shared work of the Xbox and Activision teams along with Microsoft’s Open Source Programs Office (OSPO). Parent company Microsoft owns the intellectual property for the franchise.

Only the code itself has been made open source. Ancillary items like commercial packaging and marketing assets and materials remain proprietary, as do related trademarks and brands.

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Microsoft’s warning on Tuesday that an experimental AI agent integrated into Windows can infect devices and pilfer sensitive user data has set off a familiar response from security-minded critics: Why is Big Tech so intent on pushing new features before their dangerous behaviors can be fully understood and contained?

As reported Tuesday, Microsoft introduced Copilot Actions, a new set of “experimental agentic features” that, when enabled, perform “everyday tasks like organizing files, scheduling meetings, or sending emails,” and provide “an active digital collaborator that can carry out complex tasks for you to enhance efficiency and productivity.”

Hallucinations and prompt injections apply

The fanfare, however, came with a significant caveat. Microsoft recommended users enable Copilot Actions only “if you understand the security implications outlined.”

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On Tuesday, Microsoft and Nvidia announced plans to invest in Anthropic under a new partnership that includes a $30 billion commitment by the Claude maker to use Microsoft’s cloud services. Nvidia will commit up to $10 billion to Anthropic and Microsoft up to $5 billion, with both companies investing in Anthropic’s next funding round.

The deal brings together two companies that have backed OpenAI and connects them more closely to one of the ChatGPT maker’s main competitors. Microsoft CEO Satya Nadella said in a video that OpenAI “remains a critical partner,” while adding that the companies will increasingly be customers of each other.

“We will use Anthropic models, they will use our infrastructure, and we’ll go to market together,” Nadella said.

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Microsoft has been adding AI features to Windows 11 for years, but things have recently entered a new phase, with both generative and so-called “agentic” AI features working their way deeper into the bedrock of the operating system. A new build of Windows 11 released to Windows Insider Program testers yesterday includes a new “experimental agentic features” toggle in the Settings to support a feature called Copilot Actions, and Microsoft has published a detailed support article detailing more about just how those “experimental agentic features” will work.

If you’re not familiar, “agentic” is a buzzword that Microsoft has used repeatedly to describe its future ambitions for Windows 11—in plainer language, these agents are meant to accomplish assigned tasks in the background, allowing the user’s attention to be turned elsewhere. Microsoft says it wants agents to be capable of “everyday tasks like organizing files, scheduling meetings, or sending emails,” and that Copilot Actions should give you “an active digital collaborator that can carry out complex tasks for you to enhance efficiency and productivity.”

But like other kinds of AI, these agents can be prone to error and confabulations and will often proceed as if they know what they’re doing even when they don’t. They also present, in Microsoft’s own words, “novel security risks,” mostly related to what can happen if an attacker is able to give instructions to one of these agents. As a result, Microsoft’s implementation walks a tightrope between giving these agents access to your files and cordoning them off from the rest of the system.

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Overview On November 12, NSFOCUS CERT detected that Microsoft released the November Security Update patch, which fixed 63 security issues involving widely used products such as Windows, Microsoft Office, Microsoft SQL Server, Azure, and Microsoft Visual Studio, including privilege escalation, high-risk vulnerability types such as remote code execution. Among the vulnerabilities fixed by Microsoft’s monthly […]

The post Microsoft’s November Security Update of High-Risk Vulnerability Notice for Multiple Products appeared first on NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks..

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Actively Exploited Zero-Day: CVE-2025-62215 

Other High-Severity CVEs and Products Affected 

• CVE-2025-62199: A critical RCE vulnerability in Microsoft Office that can trigger upon viewing or opening a malicious document. This flaw is particularly dangerous because it can be exploited through the Outlook Preview Pane, requiring no additional user interaction. 
• CVE-2025-60724: A heap-based buffer overflow in the Microsoft Graphics Component (GDI+) that could potentially allow remote code execution across multiple applications. 
• CVE-2025-62214: A Visual Studio CoPilot Chat extension flaw enabling remote code execution through a complex multi-stage exploitation chain involving prompt injection and build triggering. 
• CVE-2025-59499: An elevation of privilege issue in Microsoft SQL Server that enables attackers to execute arbitrary Transact-SQL commands with elevated permissions. 

Windows 11 Updates and Lifecycle Changes 

The Importance of Prompt Patching 

The U.S. government is reportedly preparing to ban the sale of wireless routers and other networking gear from TP-Link Systems, a tech company that currently enjoys an estimated 50% market share among home users and small businesses. Experts say while the proposed ban may have more to do with TP-Link’s ties to China than any specific technical threats, much of the rest of the industry serving this market also sources hardware from China and ships products that are insecure fresh out of the box.

A TP-Link WiFi 6 AX1800 Smart WiFi Router (Archer AX20).

The Washington Post recently reported that more than a half-dozen federal departments and agencies were backing a proposed ban on future sales of TP-Link devices in the United States. The story said U.S. Department of Commerce officials concluded TP-Link Systems products pose a risk because the U.S.-based company’s products handle sensitive American data and because the officials believe it remains subject to jurisdiction or influence by the Chinese government.

TP-Link Systems denies that, saying that it fully split from the Chinese TP-Link Technologies over the past three years, and that its critics have vastly overstated the company’s market share (TP-Link puts it at around 30 percent). TP-Link says it has headquarters in California, with a branch in Singapore, and that it manufactures in Vietnam. The company says it researches, designs, develops and manufactures everything except its chipsets in-house.

TP-Link Systems told The Post it has sole ownership of some engineering, design and manufacturing capabilities in China that were once part of China-based TP-Link Technologies, and that it operates them without Chinese government supervision.

“TP-Link vigorously disputes any allegation that its products present national security risks to the United States,” Ricca Silverio, a spokeswoman for TP-Link Systems, said in a statement. “TP-Link is a U.S. company committed to supplying high-quality and secure products to the U.S. market and beyond.”

Cost is a big reason TP-Link devices are so prevalent in the consumer and small business market: As this February 2025 story from Wired observed regarding the proposed ban, TP-Link has long had a reputation for flooding the market with devices that are considerably cheaper than comparable models from other vendors. That price point (and consistently excellent performance ratings) has made TP-Link a favorite among Internet service providers (ISPs) that provide routers to their customers.

In August 2024, the chairman and the ranking member of the House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party called for an investigation into TP-Link devices, which they said were found on U.S. military bases and for sale at exchanges that sell them to members of the military and their families.

“TP-Link’s unusual degree of vulnerabilities and required compliance with PRC law are in and of themselves disconcerting,” the House lawmakers warned in a letter (PDF) to the director of the Commerce Department. “When combined with the PRC government’s common use of SOHO [small office/home office] routers like TP-Link to perpetrate extensive cyberattacks in the United States, it becomes significantly alarming.”

The letter cited a May 2023 blog post by Check Point Research about a Chinese state-sponsored hacking group dubbed “Camaro Dragon” that used a malicious firmware implant for some TP-Link routers to carry out a sequence of targeted cyberattacks against European foreign affairs entities. Check Point said while it only found the malicious firmware on TP-Link devices, “the firmware-agnostic nature of the implanted components indicates that a wide range of devices and vendors may be at risk.”

In a report published in October 2024, Microsoft said it was tracking a network of compromised TP-Link small office and home office routers that has been abused by multiple distinct Chinese state-sponsored hacking groups since 2021. Microsoft found the hacker groups were leveraging the compromised TP-Link systems to conduct “password spraying” attacks against Microsoft accounts. Password spraying involves rapidly attempting to access a large number of accounts (usernames/email addresses) with a relatively small number of commonly used passwords.

TP-Link rightly points out that most of its competitors likewise source components from China. The company also correctly notes that advanced persistent threat (APT) groups from China and other nations have leveraged vulnerabilities in products from their competitors, such as Cisco and Netgear.

But that may be cold comfort for TP-Link customers who are now wondering if it’s smart to continue using these products, or whether it makes sense to buy more costly networking gear that might only be marginally less vulnerable to compromise.

Almost without exception, the hardware and software that ships with most consumer-grade routers includes a number of default settings that need to be changed before the devices can be safely connected to the Internet. For example, bring a new router online without changing the default username and password and chances are it will only take a few minutes before it is probed and possibly compromised by some type of Internet-of-Things botnet. Also, it is incredibly common for the firmware in a brand new router to be dangerously out of date by the time it is purchased and unboxed.

Until quite recently, the idea that router manufacturers should make it easier for their customers to use these products safely was something of an anathema to this industry. Consumers were largely left to figure that out on their own, with predictably disastrous results.

But over the past few years, many manufacturers of popular consumer routers have begun forcing users to perform basic hygiene — such as changing the default password and updating the internal firmware — before the devices can be used as a router. For example, most brands of “mesh” wireless routers — like Amazon’s Eero, Netgear’s Orbi series, or Asus’s ZenWifi — require online registration that automates these critical steps going forward (or at least through their stated support lifecycle).

For better or worse, less expensive, traditional consumer routers like those from Belkin and Linksys also now automate this setup by heavily steering customers toward installing a mobile app to complete the installation (this often comes as a shock to people more accustomed to manually configuring a router). Still, these products tend to put the onus on users to check for and install available updates periodically. Also, they’re often powered by underwhelming or else bloated firmware, and a dearth of configurable options.

Of course, not everyone wants to fiddle with mobile apps or is comfortable with registering their router so that it can be managed or monitored remotely in the cloud. For those hands-on folks — and for power users seeking more advanced router features like VPNs, ad blockers and network monitoring — the best advice is to check if your router’s stock firmware can be replaced with open-source alternatives, such as OpenWrt or DD-WRT.

These open-source firmware options are compatible with a wide range of devices, and they generally offer more features and configurability. Open-source firmware can even help extend the life of routers years after the vendor stops supporting the underlying hardware, but it still requires users to manually check for and install any available updates.

Happily, TP-Link users spooked by the proposed ban may have an alternative to outright junking these devices, as many TP-Link routers also support open-source firmware options like OpenWRT. While this approach may not eliminate any potential hardware-specific security flaws, it could serve as an effective hedge against more common vendor-specific vulnerabilities, such as undocumented user accounts, hard-coded credentials, and weaknesses that allow attackers to bypass authentication.

Regardless of the brand, if your router is more than four or five years old it may be worth upgrading for performance reasons alone — particularly if your home or office is primarily accessing the Internet through WiFi.

NB: The Post’s story notes that a substantial portion of TP-Link routers and those of its competitors are purchased or leased through ISPs. In these cases, the devices are typically managed and updated remotely by your ISP, and equipped with custom profiles responsible for authenticating your device to the ISP’s network. If this describes your setup, please do not attempt to modify or replace these devices without first consulting with your Internet provider.

For the past week, domains associated with the massive Aisuru botnet have repeatedly usurped Amazon, Apple, Google and Microsoft in Cloudflare’s public ranking of the most frequently requested websites. Cloudflare responded by redacting Aisuru domain names from their top websites list. The chief executive at Cloudflare says Aisuru’s overlords are using the botnet to boost their malicious domain rankings, while simultaneously attacking the company’s domain name system (DNS) service.

The #1 and #3 positions in this chart are Aisuru botnet controllers with their full domain names redacted. Source: radar.cloudflare.com.

Aisuru is a rapidly growing botnet comprising hundreds of thousands of hacked Internet of Things (IoT) devices, such as poorly secured Internet routers and security cameras. The botnet has increased in size and firepower significantly since its debut in 2024, demonstrating the ability to launch record distributed denial-of-service (DDoS) attacks nearing 30 terabits of data per second.

Until recently, Aisuru’s malicious code instructed all infected systems to use DNS servers from Google — specifically, the servers at 8.8.8.8. But in early October, Aisuru switched to invoking Cloudflare’s main DNS server — 1.1.1.1 — and over the past week domains used by Aisuru to control infected systems started populating Cloudflare’s top domain rankings.

As screenshots of Aisuru domains claiming two of the Top 10 positions ping-ponged across social media, many feared this was yet another sign that an already untamable botnet was running completely amok. One Aisuru botnet domain that sat prominently for days at #1 on the list was someone’s street address in Massachusetts followed by “.com”. Other Aisuru domains mimicked those belonging to major cloud providers.

Cloudflare tried to address these security, brand confusion and privacy concerns by partially redacting the malicious domains, and adding a warning at the top of its rankings:

“Note that the top 100 domains and trending domains lists include domains with organic activity as well as domains with emerging malicious behavior.”

Cloudflare CEO Matthew Prince told KrebsOnSecurity the company’s domain ranking system is fairly simplistic, and that it merely measures the volume of DNS queries to 1.1.1.1.

“The attacker is just generating a ton of requests, maybe to influence the ranking but also to attack our DNS service,” Prince said, adding that Cloudflare has heard reports of other large public DNS services seeing similar uptick in attacks. “We’re fixing the ranking to make it smarter. And, in the meantime, redacting any sites we classify as malware.”

Renee Burton, vice president of threat intel at the DNS security firm Infoblox, said many people erroneously assumed that the skewed Cloudflare domain rankings meant there were more bot-infected devices than there were regular devices querying sites like Google and Apple and Microsoft.

“Cloudflare’s documentation is clear — they know that when it comes to ranking domains you have to make choices on how to normalize things,” Burton wrote on LinkedIn. “There are many aspects that are simply out of your control. Why is it hard? Because reasons. TTL values, caching, prefetching, architecture, load balancing. Things that have shared control between the domain owner and everything in between.”

Alex Greenland is CEO of the anti-phishing and security firm Epi. Greenland said he understands the technical reason why Aisuru botnet domains are showing up in Cloudflare’s rankings (those rankings are based on DNS query volume, not actual web visits). But he said they’re still not meant to be there.

“It’s a failure on Cloudflare’s part, and reveals a compromise of the trust and integrity of their rankings,” he said.

Greenland said Cloudflare planned for its Domain Rankings to list the most popular domains as used by human users, and it was never meant to be a raw calculation of query frequency or traffic volume going through their 1.1.1.1 DNS resolver.

“They spelled out how their popularity algorithm is designed to reflect real human use and exclude automated traffic (they said they’re good at this),” Greenland wrote on LinkedIn. “So something has evidently gone wrong internally. We should have two rankings: one representing trust and real human use, and another derived from raw DNS volume.”

Why might it be a good idea to wholly separate malicious domains from the list? Greenland notes that Cloudflare Domain Rankings see widespread use for trust and safety determination, by browsers, DNS resolvers, safe browsing APIs and things like TRANCO.

“TRANCO is a respected open source list of the top million domains, and Cloudflare Radar is one of their five data providers,” he continued. “So there can be serious knock-on effects when a malicious domain features in Cloudflare’s top 10/100/1000/million. To many people and systems, the top 10 and 100 are naively considered safe and trusted, even though algorithmically-defined top-N lists will always be somewhat crude.”

Over this past week, Cloudflare started redacting portions of the malicious Aisuru domains from its Top Domains list, leaving only their domain suffix visible. Sometime in the past 24 hours, Cloudflare appears to have begun hiding the malicious Aisuru domains entirely from the web version of that list. However, downloading a spreadsheet of the current Top 200 domains from Cloudflare Radar shows an Aisuru domain still at the very top.

According to Cloudflare’s website, the majority of DNS queries to the top Aisuru domains — nearly 52 percent — originated from the United States. This tracks with my reporting from early October, which found Aisuru was drawing most of its firepower from IoT devices hosted on U.S. Internet providers like AT&T, Comcast and Verizon.

Experts tracking Aisuru say the botnet relies on well more than a hundred control servers, and that for the moment at least most of those domains are registered in the .su top-level domain (TLD). Dot-su is the TLD assigned to the former Soviet Union (.su’s Wikipedia page says the TLD was created just 15 months before the fall of the Berlin wall).

A Cloudflare blog post from October 27 found that .su had the highest “DNS magnitude” of any TLD, referring to a metric estimating the popularity of a TLD based on the number of unique networks querying Cloudflare’s 1.1.1.1 resolver. The report concluded that the top .su hostnames were associated with a popular online world-building game, and that more than half of the queries for that TLD came from the United States, Brazil and Germany [it’s worth noting that servers for the world-building game Minecraft were some of Aisuru’s most frequent targets].

A simple and crude way to detect Aisuru bot activity on a network may be to set an alert on any systems attempting to contact domains ending in .su. This TLD is frequently abused for cybercrime and by cybercrime forums and services, and blocking access to it entirely is unlikely to raise any legitimate complaints.

We talked about the Z80 SoftCard, Microsoft’s first hardware product, back in 2023, but thanks to Raymond Chen and Nicole Branagan, we’ve got some more insights.

The Microsoft Z-80 SoftCard was a plug-in expansion card for the Apple II that added the ability to run CP/M software. According to Wikipedia, it was Microsoft’s first hardware product and in 1980 was the single largest revenue source for the company.

↫ Raymond Chen at The Old New Thing

And Chen links to an article by Branagan from 2020, which goes into even more detail.

So there I was, very happy with my Apple ][_plus. But then I saw someone on the internet post, and it seems that my Apple is an overpriced box with a toy microcontroller for a CPU, while real computers use an Intel 8080, 8085 or Zilog Z80 to run something called “CP/M”… but I’ve already spent so much money on the Apple, so can I turn it into a real computer?

↫ Nicole Branagan

I have a soft spot for this particular subgenre of hardware – add-in cards that allow you to run an entirely different architecture inside your computer – and soon, I’ll be diving into a particularly capable example here on OSNews.

OpenAI on Thursday launched Aardvark, an artificial intelligence (AI) agent designed to autonomously detect and help fix security vulnerabilities in software code, offering defenders a potentially valuable tool against malicious hackers. The GPT-5-powered tool, currently in private beta, represents what OpenAI calls a “defender-first model” that continuously monitors code repositories to identify vulnerabilities as software..

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Digital Defense Report 2025: Data Behind the Threat 

Regional Focus: Urgency in the Adriatic 

Modernization Is Non-Negotiable 

• China, expanding its operations across industries and NGOs by exploiting vulnerable devices for covert access. 
• Iran, targeting logistics companies in Europe and the Persian Gulf, is likely to disrupt trade. 
• Russia, extending operations beyond Ukraine and focusing on small NATO countries ' businesses as potential entry points into larger networks. 
• North Korea, combining espionage and profit motives, often uses overseas IT workers whose earnings are sent back to the regime. 

• CVE-2022-48503, an 8.8-severity vulnerability in multiple Apple products that could lead to arbitrary code execution when processing web content. The issue was addressed with improved bounds checks.
• CVE-2025-33073, an 8.8-rated Microsoft Windows SMB Client Improper Access Control vulnerability that Microsoft had labeled as less likely to be exploited in its June Patch Tuesday update.
• CVE-2025-61884, a 7.5-severity Oracle E-Business Suite Server-Side Request Forgery (SSRF) vulnerability that Oracle issued an emergency patch for on October 11.
• CVE-2025-2746 and CVE-2025-2747, which are both 9.8-rated password authentication bypass issues in Kentico Xperience Staging Sync Server.

Oracle Vulnerabilities Under Attack

Microsoft CVE-2025-33073 Vulnerability Discovered by 8 Researchers

Patch Tuesday October 2025: Two 9.8 Vulnerabilities

Other High-risk Vulnerabilities

U.S. prosecutors last week levied criminal hacking charges against 19-year-old U.K. national Thalha Jubair for allegedly being a core member of Scattered Spider, a prolific cybercrime group blamed for extorting at least $115 million in ransom payments from victims. The charges came as Jubair and an alleged co-conspirator appeared in a London court to face accusations of hacking into and extorting several large U.K. retailers, the London transit system, and healthcare providers in the United States.

At a court hearing last week, U.K. prosecutors laid out a litany of charges against Jubair and 18-year-old Owen Flowers, accusing the teens of involvement in an August 2024 cyberattack that crippled Transport for London, the entity responsible for the public transport network in the Greater London area.

A court artist sketch of Owen Flowers (left) and Thalha Jubair appearing at Westminster Magistrates’ Court last week. Credit: Elizabeth Cook, PA Wire.

On July 10, 2025, KrebsOnSecurity reported that Flowers and Jubair had been arrested in the United Kingdom in connection with recent Scattered Spider ransom attacks against the retailers Marks & Spencer and Harrods, and the British food retailer Co-op Group.

That story cited sources close to the investigation saying Flowers was the Scattered Spider member who anonymously gave interviews to the media in the days after the group’s September 2023 ransomware attacks disrupted operations at Las Vegas casinos operated by MGM Resorts and Caesars Entertainment.

The story also noted that Jubair’s alleged handles on cybercrime-focused Telegram channels had far lengthier rap sheets involving some of the more consequential and headline-grabbing data breaches over the past four years. What follows is an account of cybercrime activities that prosecutors have attributed to Jubair’s alleged hacker handles, as told by those accounts in posts to public Telegram channels that are closely monitored by multiple cyber intelligence firms.

EARLY DAYS (2021-2022)

Jubair is alleged to have been a core member of the LAPSUS$ cybercrime group that broke into dozens of technology companies beginning in late 2021, stealing source code and other internal data from tech giants including Microsoft, Nvidia, Okta, Rockstar Games, Samsung, T-Mobile, and Uber.

That is, according to the former leader of the now-defunct LAPSUS$. In April 2022, KrebsOnSecurity published internal chat records taken from a server that LAPSUS$ used, and those chats indicate Jubair was working with the group using the nicknames Amtrak and Asyntax. In the middle of the gang’s cybercrime spree, Asyntax told the LAPSUS$ leader not to share T-Mobile’s logo in images sent to the group because he’d been previously busted for SIM-swapping and his parents would suspect he was back at it again.

The leader of LAPSUS$ responded by gleefully posting Asyntax’s real name, phone number, and other hacker handles into a public chat room on Telegram:

In March 2022, the leader of the LAPSUS$ data extortion group exposed Thalha Jubair’s name and hacker handles in a public chat room on Telegram.

That story about the leaked LAPSUS$ chats also connected Amtrak/Asyntax to several previous hacker identities, including “Everlynn,” who in April 2021 began offering a cybercriminal service that sold fraudulent “emergency data requests” targeting the major social media and email providers.

In these so-called “fake EDR” schemes, the hackers compromise email accounts tied to police departments and government agencies, and then send unauthorized demands for subscriber data (e.g. username, IP/email address), while claiming the information being requested can’t wait for a court order because it relates to an urgent matter of life and death.

The roster of the now-defunct “Infinity Recursion” hacking team, which sold fake EDRs between 2021 and 2022. The founder “Everlynn” has been tied to Jubair. The member listed as “Peter” became the leader of LAPSUS$ who would later post Jubair’s name, phone number and hacker handles into LAPSUS$’s chat channel.

EARTHTOSTAR

Prosecutors in New Jersey last week alleged Jubair was part of a threat group variously known as Scattered Spider, 0ktapus, and UNC3944, and that he used the nicknames EarthtoStar, Brad, Austin, and Austistic.

Beginning in 2022, EarthtoStar co-ran a bustling Telegram channel called Star Chat, which was home to a prolific SIM-swapping group that relentlessly used voice- and SMS-based phishing attacks to steal credentials from employees at the major wireless providers in the U.S. and U.K.

Jubair allegedly used the handle “Earth2Star,” a core member of a prolific SIM-swapping group operating in 2022. This ad produced by the group lists various prices for SIM swaps.

The group would then use that access to sell a SIM-swapping service that could redirect a target’s phone number to a device the attackers controlled, allowing them to intercept the victim’s phone calls and text messages (including one-time codes). Members of Star Chat targeted multiple wireless carriers with SIM-swapping attacks, but they focused mainly on phishing T-Mobile employees.

In February 2023, KrebsOnSecurity scrutinized more than seven months of these SIM-swapping solicitations on Star Chat, which almost daily peppered the public channel with “Tmo up!” and “Tmo down!” notices indicating periods wherein the group claimed to have active access to T-Mobile’s network.

A redacted receipt from Star Chat’s SIM-swapping service targeting a T-Mobile customer after the group gained access to internal T-Mobile employee tools.

The data showed that Star Chat — along with two other SIM-swapping groups operating at the same time — collectively broke into T-Mobile over a hundred times in the last seven months of 2022. However, Star Chat was by far the most prolific of the three, responsible for at least 70 of those incidents.

The 104 days in the latter half of 2022 in which different known SIM-swapping groups claimed access to T-Mobile employee tools. Star Chat was responsible for a majority of these incidents. Image: krebsonsecurity.com.

A review of EarthtoStar’s messages on Star Chat as indexed by the threat intelligence firm Flashpoint shows this person also sold “AT&T email resets” and AT&T call forwarding services for up to $1,200 per line. EarthtoStar explained the purpose of this service in post on Telegram:

“Ok people are confused, so you know when u login to chase and it says ‘2fa required’ or whatever the fuck, well it gives you two options, SMS or Call. If you press call, and I forward the line to you then who do you think will get said call?”

New Jersey prosecutors allege Jubair also was involved in a mass SMS phishing campaign during the summer of 2022 that stole single sign-on credentials from employees at hundreds of companies. The text messages asked users to click a link and log in at a phishing page that mimicked their employer’s Okta authentication page, saying recipients needed to review pending changes to their upcoming work schedules.

The phishing websites used a Telegram instant message bot to forward any submitted credentials in real-time, allowing the attackers to use the phished username, password and one-time code to log in as that employee at the real employer website.

That weeks-long SMS phishing campaign led to intrusions and data thefts at more than 130 organizations, including LastPass, DoorDash, Mailchimp, Plex and Signal.

A visual depiction of the attacks by the SMS phishing group known as 0ktapus, ScatterSwine, and Scattered Spider. Image: Amitai Cohen twitter.com/amitaico.

DA, COMRADE

EarthtoStar’s group Star Chat specialized in phishing their way into business process outsourcing (BPO) companies that provide customer support for a range of multinational companies, including a number of the world’s largest telecommunications providers. In May 2022, EarthtoStar posted to the Telegram channel “Frauwudchat”:

“Hi, I am looking for partners in order to exfiltrate data from large telecommunications companies/call centers/alike, I have major experience in this field, [including] a massive call center which houses 200,000+ employees where I have dumped all user credentials and gained access to the [domain controller] + obtained global administrator I also have experience with REST API’s and programming. I have extensive experience with VPN, Citrix, cisco anyconnect, social engineering + privilege escalation. If you have any Citrix/Cisco VPN or any other useful things please message me and lets work.”

At around the same time in the Summer of 2022, at least two different accounts tied to Star Chat — “RocketAce” and “Lopiu” — introduced the group’s services to denizens of the Russian-language cybercrime forum Exploit, including:

-SIM-swapping services targeting Verizon and T-Mobile customers;
-Dynamic phishing pages targeting customers of single sign-on providers like Okta;
-Malware development services;
-The sale of extended validation (EV) code signing certificates.

The user “Lopiu” on the Russian cybercrime forum Exploit advertised many of the same unique services offered by EarthtoStar and other Star Chat members. Image source: ke-la.com.

These two accounts on Exploit created multiple sales threads in which they claimed administrative access to U.S. telecommunications providers and asked other Exploit members for help in monetizing that access. In June 2022, RocketAce, which appears to have been just one of EarthtoStar’s many aliases, posted to Exploit:

Hello. I have access to a telecommunications company’s citrix and vpn. I would like someone to help me break out of the system and potentially attack the domain controller so all logins can be extracted we can discuss payment and things leave your telegram in the comments or private message me ! Looking for someone with knowledge in citrix/privilege escalation

On Nov. 15, 2022, EarthtoStar posted to their Star Sanctuary Telegram channel that they were hiring malware developers with a minimum of three years of experience and the ability to develop rootkits, backdoors and malware loaders.

“Optional: Endorsed by advanced APT Groups (e.g. Conti, Ryuk),” the ad concluded, referencing two of Russia’s most rapacious and destructive ransomware affiliate operations. “Part of a nation-state / ex-3l (3 letter-agency).”

2023-PRESENT DAY

The Telegram and Discord chat channels wherein Flowers and Jubair allegedly planned and executed their extortion attacks are part of a loose-knit network known as the Com, an English-speaking cybercrime community consisting mostly of individuals living in the United States, the United Kingdom, Canada and Australia.

Many of these Com chat servers have hundreds to thousands of members each, and some of the more interesting solicitations on these communities are job offers for in-person assignments and tasks that can be found if one searches for posts titled, “If you live near,” or “IRL job” — short for “in real life” job.

These “violence-as-a-service” solicitations typically involve “brickings,” where someone is hired to toss a brick through the window at a specified address. Other IRL jobs for hire include tire-stabbings, molotov cocktail hurlings, drive-by shootings, and even home invasions. The people targeted by these services are typically other criminals within the community, but it’s not unusual to see Com members asking others for help in harassing or intimidating security researchers and even the very law enforcement officers who are investigating their alleged crimes.

It remains unclear what precipitated this incident or what followed directly after, but on January 13, 2023, a Star Sanctuary account used by EarthtoStar solicited the home invasion of a sitting U.S. federal prosecutor from New York. That post included a photo of the prosecutor taken from the Justice Department’s website, along with the message:

“Need irl niggas, in home hostage shit no fucking pussies no skinny glock holding 100 pound niggas either”

Throughout late 2022 and early 2023, EarthtoStar’s alias “Brad” (a.k.a. “Brad_banned”) frequently advertised Star Chat’s malware development services, including custom malicious software designed to hide the attacker’s presence on a victim machine:

We can develop KERNEL malware which will achieve persistence for a long time,
bypass firewalls and have reverse shell access.

This shit is literally like STAGE 4 CANCER FOR COMPUTERS!!!

Kernel meaning the highest level of authority on a machine.
This can range to simple shells to Bootkits.

Bypass all major EDR’s (SentinelOne, CrowdStrike, etc)
Patch EDR’s scanning functionality so it’s rendered useless!

Once implanted, extremely difficult to remove (basically impossible to even find)
Development Experience of several years and in multiple APT Groups.

Be one step ahead of the game. Prices start from $5,000+. Message @brad_banned to get a quote

In September 2023 , both MGM Resorts and Caesars Entertainment suffered ransomware attacks at the hands of a Russian ransomware affiliate program known as ALPHV and BlackCat. Caesars reportedly paid a $15 million ransom in that incident.

Within hours of MGM publicly acknowledging the 2023 breach, members of Scattered Spider were claiming credit and telling reporters they’d broken in by social engineering a third-party IT vendor. At a hearing in London last week, U.K. prosecutors told the court Jubair was found in possession of more than $50 million in ill-gotten cryptocurrency, including funds that were linked to the Las Vegas casino hacks.

The Star Chat channel was finally banned by Telegram on March 9, 2025. But U.S. prosecutors say Jubair and fellow Scattered Spider members continued their hacking, phishing and extortion activities up until September 2025.

In April 2025, the Com was buzzing about the publication of “The Com Cast,” a lengthy screed detailing Jubair’s alleged cybercriminal activities and nicknames over the years. This account included photos and voice recordings allegedly of Jubair, and asserted that in his early days on the Com Jubair used the nicknames Clark and Miku (these are both aliases used by Everlynn in connection with their fake EDR services).

Thalha Jubair (right), without his large-rimmed glasses, in an undated photo posted in The Com Cast.

More recently, the anonymous Com Cast author(s) claimed, Jubair had used the nickname “Operator,” which corresponds to a Com member who ran an automated Telegram-based doxing service that pulled consumer records from hacked data broker accounts. That public outing came after Operator allegedly seized control over the Doxbin, a long-running and highly toxic community that is used to “dox” or post deeply personal information on people.

“Operator/Clark/Miku: A key member of the ransomware group Scattered Spider, which consists of a diverse mix of individuals involved in SIM swapping and phishing,” the Com Cast account stated. “The group is an amalgamation of several key organizations, including Infinity Recursion (owned by Operator), True Alcorians (owned by earth2star), and Lapsus, which have come together to form a single collective.”

The New Jersey complaint (PDF) alleges Jubair and other Scattered Spider members committed computer fraud, wire fraud, and money laundering in relation to at least 120 computer network intrusions involving 47 U.S. entities between May 2022 and September 2025. The complaint alleges the group’s victims paid at least $115 million in ransom payments.

U.S. authorities say they traced some of those payments to Scattered Spider to an Internet server controlled by Jubair. The complaint states that a cryptocurrency wallet discovered on that server was used to purchase several gift cards, one of which was used at a food delivery company to send food to his apartment. Another gift card purchased with cryptocurrency from the same server was allegedly used to fund online gaming accounts under Jubair’s name. U.S. prosecutors said that when they seized that server they also seized $36 million in cryptocurrency.

The complaint also charges Jubair with involvement in a hacking incident in January 2025 against the U.S. courts system that targeted a U.S. magistrate judge overseeing a related Scattered Spider investigation. That other investigation appears to have been the prosecution of Noah Michael Urban, a 20-year-old Florida man charged in November 2024 by prosecutors in Los Angeles as one of five alleged Scattered Spider members.

Urban pleaded guilty in April 2025 to wire fraud and conspiracy charges, and in August he was sentenced to 10 years in federal prison. Speaking with KrebsOnSecurity from jail after his sentencing, Urban asserted that the judge gave him more time than prosecutors requested because he was mad that Scattered Spider hacked his email account.

Noah “Kingbob” Urban, posting to Twitter/X around the time of his sentencing on Aug. 20.

A court transcript (PDF) from a status hearing in February 2025 shows Urban was telling the truth about the hacking incident that happened while he was in federal custody. The judge told attorneys for both sides that a co-defendant in the California case was trying to find out about Mr. Urban’s activity in the Florida case, and that the hacker accessed the account by impersonating a judge over the phone and requesting a password reset.

Allison Nixon is chief research officer at the New York based security firm Unit 221B, and easily one of the world’s leading experts on Com-based cybercrime activity. Nixon said the core problem with legally prosecuting well-known cybercriminals from the Com has traditionally been that the top offenders tend to be under the age of 18, and thus difficult to charge under federal hacking statutes.

In the United States, prosecutors typically wait until an underage cybercrime suspect becomes an adult to charge them. But until that day comes, she said, Com actors often feel emboldened to continue committing — and very often bragging about — serious cybercrime offenses.

“Here we have a special category of Com offenders that effectively enjoy legal immunity,” Nixon told KrebsOnSecurity. “Most get recruited to Com groups when they are older, but of those that join very young, such as 12 or 13, they seem to be the most dangerous because at that age they have no grounding in reality and so much longevity before they exit their legal immunity.”

Nixon said U.K. authorities face the same challenge when they briefly detain and search the homes of underage Com suspects: Namely, the teen suspects simply go right back to their respective cliques in the Com and start robbing and hurting people again the minute they’re released.

Indeed, the U.K. court heard from prosecutors last week that both Scattered Spider suspects were detained and/or searched by local law enforcement on multiple occasions, only to return to the Com less than 24 hours after being released each time.

“What we see is these young Com members become vectors for perpetrators to commit enormously harmful acts and even child abuse,” Nixon said. “The members of this special category of people who enjoy legal immunity are meeting up with foreign nationals and conducting these sometimes heinous acts at their behest.”

Nixon said many of these individuals have few friends in real life because they spend virtually all of their waking hours on Com channels, and so their entire sense of identity, community and self-worth gets wrapped up in their involvement with these online gangs. She said if the law was such that prosecutors could treat these people commensurate with the amount of harm they cause society, that would probably clear up a lot of this problem.

“If law enforcement was allowed to keep them in jail, they would quit reoffending,” she said.

The Times of London reports that Flowers is facing three charges under the Computer Misuse Act: two of conspiracy to commit an unauthorized act in relation to a computer causing/creating risk of serious damage to human welfare/national security and one of attempting to commit the same act. Maximum sentences for these offenses can range from 14 years to life in prison, depending on the impact of the crime.

Jubair is reportedly facing two charges in the U.K.: One of conspiracy to commit an unauthorized act in relation to a computer causing/creating risk of serious damage to human welfare/national security and one of failing to comply with a section 49 notice to disclose the key to protected information.

In the United States, Jubair is charged with computer fraud conspiracy, two counts of computer fraud, wire fraud conspiracy, two counts of wire fraud, and money laundering conspiracy. If extradited to the U.S., tried and convicted on all charges, he faces a maximum penalty of 95 years in prison.

In July 2025, the United Kingdom barred victims of hacking from paying ransoms to cybercriminal groups unless approved by officials. U.K. organizations that are considered part of critical infrastructure reportedly will face a complete ban, as will the entire public sector. U.K. victims of a hack are now required to notify officials to better inform policymakers on the scale of Britain’s ransomware problem.

For further reading (bless you), check out Bloomberg’s poignant story last week based on a year’s worth of jailhouse interviews with convicted Scattered Spider member Noah Urban.

Senator Ron Wyden has asked the Federal Trade Commission to investigate Microsoft over its continued use of the RC4 encryption algorithm. The letter talks about a hacker technique called Kerberoasting, that exploits the Kerberos authentication system.

And the beatings continue until “AI” improves. Except if you live in the European Union/EEA, that is.

Windows devices with the Microsoft 365 desktop client apps will automatically install the Microsoft 365 Copilot app. This app installation takes place in the background and would not disrupt the user. This app installation will start in Fall 2025.

↫ Microsoft support document

Basically, if you have Microsoft 365 desktop applications installed – read my article about some deep Microsoft lore to figure out what that means – Microsoft is going to force-install all the Copilot stuff onto your computer, whether you like it or not. Thanks to more robust consumer protection legislation in the European Union/EEA, like the Digital Markets Act and Digital Services Act, this force-install will not take place there. Administrators managing Office 365 deployments get an option to opt-out through the Microsoft 365 Apps admin center, but I’m not sure if regular users can use this method as well.

Remember, when you’re using Windows (or macOS, for that matter), you don’t own your computer. Plan accordingly.

Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known “zero-day” or actively exploited vulnerabilities in this month’s bundle from Redmond, which nevertheless includes patches for 13 flaws that earned Microsoft’s most-dire “critical” label. Meanwhile, both Apple and Google recently released updates to fix zero-day bugs in their devices.

Microsoft assigns security flaws a “critical” rating when malware or miscreants can exploit them to gain remote access to a Windows system with little or no help from users. Among the more concerning critical bugs quashed this month is CVE-2025-54918. The problem here resides with Windows NTLM, or NT LAN Manager, a suite of code for managing authentication in a Windows network environment.

Redmond rates this flaw as “Exploitation More Likely,” and although it is listed as a privilege escalation vulnerability, Kev Breen at Immersive says this one is actually exploitable over the network or the Internet.

“From Microsoft’s limited description, it appears that if an attacker is able to send specially crafted packets over the network to the target device, they would have the ability to gain SYSTEM-level privileges on the target machine,” Breen said. “The patch notes for this vulnerability state that ‘Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network,’ suggesting an attacker may already need to have access to the NTLM hash or the user’s credentials.”

Breen said another patch — CVE-2025-55234, a 8.8 CVSS-scored flaw affecting the Windows SMB client for sharing files across a network — also is listed as privilege escalation bug but is likewise remotely exploitable. This vulnerability was publicly disclosed prior to this month.

“Microsoft says that an attacker with network access would be able to perform a replay attack against a target host, which could result in the attacker gaining additional privileges, which could lead to code execution,” Breen noted.

CVE-2025-54916 is an “important” vulnerability in Windows NTFS — the default filesystem for all modern versions of Windows — that can lead to remote code execution. Microsoft likewise thinks we are more than likely to see exploitation of this bug soon: The last time Microsoft patched an NTFS bug was in March 2025 and it was already being exploited in the wild as a zero-day.

“While the title of the CVE says ‘Remote Code Execution,’ this exploit is not remotely exploitable over the network, but instead needs an attacker to either have the ability to run code on the host or to convince a user to run a file that would trigger the exploit,” Breen said. “This is commonly seen in social engineering attacks, where they send the user a file to open as an attachment or a link to a file to download and run.”

Critical and remote code execution bugs tend to steal all the limelight, but Tenable Senior Staff Research Engineer Satnam Narang notes that nearly half of all vulnerabilities fixed by Microsoft this month are privilege escalation flaws that require an attacker to have gained access to a target system first before attempting to elevate privileges.

“For the third time this year, Microsoft patched more elevation of privilege vulnerabilities than remote code execution flaws,” Narang observed.

On Sept. 3, Google fixed two flaws that were detected as exploited in zero-day attacks, including CVE-2025-38352, an elevation of privilege in the Android kernel, and CVE-2025-48543, also an elevation of privilege problem in the Android Runtime component.

Also, Apple recently patched its seventh zero-day (CVE-2025-43300) of this year. It was part of an exploit chain used along with a vulnerability in the WhatsApp (CVE-2025-55177) instant messenger to hack Apple devices. Amnesty International reports that the two zero-days have been used in “an advanced spyware campaign” over the past 90 days. The issue is fixed in iOS 18.6.2, iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, and macOS Ventura 13.7.8.

The SANS Internet Storm Center has a clickable breakdown of each individual fix from Microsoft, indexed by severity and CVSS score. Enterprise Windows admins involved in testing patches before rolling them out should keep an eye on askwoody.com, which often has the skinny on wonky updates.

AskWoody also reminds us that we’re now just two months out from Microsoft discontinuing free security updates for Windows 10 computers. For those interested in safely extending the lifespan and usefulness of these older machines, check out last month’s Patch Tuesday coverage for a few pointers.

As ever, please don’t neglect to back up your data (if not your entire system) at regular intervals, and feel free to sound off in the comments if you experience problems installing any of these fixes.

This assembly language source code represents one of the most historically significant pieces of software from the early personal computer era. It is the complete source code for Microsoft BASIC Version 1.1 for the 6502 microprocessor, originally developed and copyrighted by Microsoft in 1976-1978.

↫ Microsoft BASIC Version 1.1 GitHub page

An amazing historical artifact to have, and I’m glad we now have the source code available for posterity. I hope Microsoft gets on with it, though, as I think it’s high-time we get official open source releases of things like Windows 3.x, 95, earlier Office releases, and so on.

Image: Mark Rademaker, via Shutterstock.

Ukraine has seen nearly one-fifth of its Internet space come under Russian control or sold to Internet address brokers since February 2022, a new study finds. The analysis indicates large chunks of Ukrainian Internet address space are now in the hands of shadowy proxy and anonymity services that are nested at some of America’s largest Internet service providers (ISPs).

The findings come in a report examining how the Russian invasion has affected Ukraine’s domestic supply of Internet Protocol Version 4 (IPv4) addresses. Researchers at Kentik, a company that measures the performance of Internet networks, found that while a majority of ISPs in Ukraine haven’t changed their infrastructure much since the war began in 2022, others have resorted to selling swathes of their valuable IPv4 address space just to keep the lights on.

For example, Ukraine’s incumbent ISP Ukrtelecom is now routing just 29 percent of the IPv4 address ranges that the company controlled at the start of the war, Kentik found. Although much of that former IP space remains dormant, Ukrtelecom told Kentik’s Doug Madory they were forced to sell many of their address blocks “to secure financial stability and continue delivering essential services.”

“Leasing out a portion of our IPv4 resources allowed us to mitigate some of the extraordinary challenges we have been facing since the full-scale invasion began,” Ukrtelecom told Madory.

Madory found much of the IPv4 space previously allocated to Ukrtelecom is now scattered to more than 100 providers globally, particularly at three large American ISPs — Amazon (AS16509), AT&T (AS7018), and Cogent (AS174).

Another Ukrainian Internet provider — LVS (AS43310) — in 2022 was routing approximately 6,000 IPv4 addresses across the nation. Kentik learned that by November 2022, much of that address space had been parceled out to over a dozen different locations, with the bulk of it being announced at AT&T.

IP addresses routed over time by Ukrainian provider LVS (AS43310) shows a large chunk of it being routed by AT&T (AS7018). Image: Kentik.

Ditto for the Ukrainian ISP TVCOM, which currently routes nearly 15,000 fewer IPv4 addresses than it did at the start of the war. Madory said most of those addresses have been scattered to 37 other networks outside of Eastern Europe, including Amazon, AT&T, and Microsoft.

The Ukrainian ISP Trinity (AS43554) went offline in early March 2022 during the bloody siege of Mariupol, but its address space eventually began showing up in more than 50 different networks worldwide. Madory found more than 1,000 of Trinity’s IPv4 addresses suddenly appeared on AT&T’s network.

Why are all these former Ukrainian IP addresses being routed by U.S.-based networks like AT&T? According to spur.us, a company that tracks VPN and proxy services, nearly all of the address ranges identified by Kentik now map to commercial proxy services that allow customers to anonymously route their Internet traffic through someone else’s computer.

From a website’s perspective, the traffic from a proxy network user appears to originate from the rented IP address, not from the proxy service customer. These services can be used for several business purposes, such as price comparisons, sales intelligence, web crawlers and content-scraping bots. However, proxy services also are massively abused for hiding cybercrime activity because they can make it difficult to trace malicious traffic to its original source.

IPv4 address ranges are always in high demand, which means they are also quite valuable. There are now multiple companies that will pay ISPs to lease out their unwanted or unused IPv4 address space. Madory said these IPv4 brokers will pay between $100-$500 per month to lease a block of 256 IPv4 addresses, and very often the entities most willing to pay those rental rates are proxy and VPN providers.

A cursory review of all Internet address blocks currently routed through AT&T — as seen in public records maintained by the Internet backbone provider Hurricane Electric — shows a preponderance of country flags other than the United States, including networks originating in Hungary, Lithuania, Moldova, Mauritius, Palestine, Seychelles, Slovenia, and Ukraine.

AT&T’s IPv4 address space seems to be routing a great deal of proxy traffic, including a large number of IP address ranges that were until recently routed by ISPs in Ukraine.

Asked about the apparent high incidence of proxy services routing foreign address blocks through AT&T, the telecommunications giant said it recently changed its policy about originating routes for network blocks that are not owned and managed by AT&T. That new policy, spelled out in a February 2025 update to AT&T’s terms of service, gives those customers until Sept. 1, 2025 to originate their own IP space from their own autonomous system number (ASN), a unique number assigned to each ISP (AT&T’s is AS7018).

“To ensure our customers receive the best quality of service, we changed our terms for dedicated internet in February 2025,” an AT&T spokesperson said in an emailed reply. “We no longer permit static routes with IP addresses that we have not provided. We have been in the process of identifying and notifying affected customers that they have 90 days to transition to Border Gateway Protocol routing using their own autonomous system number.”

Ironically, the co-mingling of Ukrainian IP address space with proxy providers has resulted in many of these addresses being used in cyberattacks against Ukraine and other enemies of Russia. Earlier this month, the European Union sanctioned Stark Industries Solutions Inc., an ISP that surfaced two weeks before the Russian invasion and quickly became the source of large-scale DDoS attacks and spear-phishing attempts by Russian state-sponsored hacking groups. A deep dive into Stark’s considerable address space showed some of it was sourced from Ukrainian ISPs, and most of it was connected to Russia-based proxy and anonymity services.

According to Spur, the proxy service IPRoyal is the current beneficiary of IP address blocks from several Ukrainian ISPs profiled in Kentik’s report. Customers can chose proxies by specifying the city and country they would to proxy their traffic through. Image: Trend Micro.

Spur’s Chief Technology Officer Riley Kilmer said AT&T’s policy change will likely force many proxy services to migrate to other U.S. providers that have less stringent policies.

“AT&T is the first one of the big ISPs that seems to be actually doing something about this,” Kilmer said. “We track several services that explicitly sell AT&T IP addresses, and it will be very interesting to see what happens to those services come September.”

Still, Kilmer said, there are several other large U.S. ISPs that continue to make it easy for proxy services to bring their own IP addresses and host them in ranges that give the appearance of residential customers. For example, Kentik’s report identified former Ukrainian IP ranges showing up as proxy services routed by Cogent Communications (AS174), a tier-one Internet backbone provider based in Washington, D.C.

Kilmer said Cogent has become an attractive home base for proxy services because it is relatively easy to get Cogent to route an address block.

“In fairness, they transit a lot of traffic,” Kilmer said of Cogent. “But there’s a reason a lot of this proxy stuff shows up as Cogent: Because it’s super easy to get something routed there.”

Cogent declined a request to comment on Kentik’s findings.

Image: Shutterstock, ArtHead.

The U.S. government today imposed economic sanctions on Funnull Technology Inc., a Philippines-based company that provides computer infrastructure for hundreds of thousands of websites involved in virtual currency investment scams known as “pig butchering.” In January 2025, KrebsOnSecurity detailed how Funnull was being used as a content delivery network that catered to cybercriminals seeking to route their traffic through U.S.-based cloud providers.

“Americans lose billions of dollars annually to these cyber scams, with revenues generated from these crimes rising to record levels in 2024,” reads a statement from the U.S. Department of the Treasury, which sanctioned Funnull and its 40-year-old Chinese administrator Liu Lizhi. “Funnull has directly facilitated several of these schemes, resulting in over $200 million in U.S. victim-reported losses.”

The Treasury Department said Funnull’s operations are linked to the majority of virtual currency investment scam websites reported to the FBI. The agency said Funnull directly facilitated pig butchering and other schemes that resulted in more than $200 million in financial losses by Americans.

Pig butchering is a rampant form of fraud wherein people are lured by flirtatious strangers online into investing in fraudulent cryptocurrency trading platforms. Victims are coached to invest more and more money into what appears to be an extremely profitable trading platform, only to find their money is gone when they wish to cash out.

The scammers often insist that investors pay additional “taxes” on their crypto “earnings” before they can see their invested funds again (spoiler: they never do), and a shocking number of people have lost six figures or more through these pig butchering scams.

KrebsOnSecurity’s January story on Funnull was based on research from the security firm Silent Push, which discovered in October 2024 that a vast number of domains hosted via Funnull were promoting gambling sites that bore the logo of the Suncity Group, a Chinese entity named in a 2024 UN report (PDF) for laundering millions of dollars for the North Korean state-sponsored hacking group Lazarus.

Silent Push found Funnull was a criminal content delivery network (CDN) that carried a great deal of traffic tied to scam websites, funneling the traffic through a dizzying chain of auto-generated domain names and U.S.-based cloud providers before redirecting to malicious or phishous websites. The FBI has released a technical writeup (PDF) of the infrastructure used to manage the malicious Funnull domains between October 2023 and April 2025.

A graphic from the FBI explaining how Funnull generated a slew of new domains on a regular basis and mapped them to Internet addresses on U.S. cloud providers.

Silent Push revisited Funnull’s infrastructure in January 2025 and found Funnull was still using many of the same Amazon and Microsoft cloud Internet addresses identified as malicious in its October report. Both Amazon and Microsoft pledged to rid their networks of Funnull’s presence following that story, but according to Silent Push’s Zach Edwards only one of those companies has followed through.

Edwards said Silent Push no longer sees Microsoft Internet addresses showing up in Funnull’s infrastructure, while Amazon continues to struggle with removing Funnull servers, including one that appears to have first materialized in 2023.

“Amazon is doing a terrible job — every day since they made those claims to you and us in our public blog they have had IPs still mapped to Funnull, including some that have stayed mapped for inexplicable periods of time,” Edwards said.

Amazon said its Amazon Web Services (AWS) hosting platform actively counters abuse attempts.

“We have stopped hundreds of attempts this year related to this group and we are looking into the information you shared earlier today,” reads a statement shared by Amazon. “If anyone suspects that AWS resources are being used for abusive activity, they can report it to AWS Trust & Safety using the report abuse form here.”

U.S. based cloud providers remain an attractive home base for cybercriminal organizations because many organizations will not be overly aggressive in blocking traffic from U.S.-based cloud networks, as doing so can result in blocking access to many legitimate web destinations that are also on that same shared network segment or host.

What’s more, funneling their bad traffic so that it appears to be coming out of U.S. cloud Internet providers allows cybercriminals to connect to websites from web addresses that are geographically close(r) to their targets and victims (to sidestep location-based security controls by your bank, for example).

Funnull is not the only cybercriminal infrastructure-as-a-service provider that was sanctioned this month: On May 20, 2025, the European Union imposed sanctions on Stark Industries Solutions, an ISP that materialized at the start of Russia’s invasion of Ukraine and has been used as a global proxy network that conceals the true source of cyberattacks and disinformation campaigns against enemies of Russia.

In May 2024, KrebsOnSecurity published a deep dive on Stark Industries Solutions that found much of the malicious traffic traversing Stark’s network (e.g. vulnerability scanning and password brute force attacks) was being bounced through U.S.-based cloud providers. My reporting showed how deeply Stark had penetrated U.S. ISPs, and that its co-founder for many years sold “bulletproof” hosting services that told Russian cybercrime forum customers they would proudly ignore any abuse complaints or police inquiries.

The homepage of Stark Industries Solutions.

That story examined the history of Stark’s co-founders, Moldovan brothers Ivan and Yuri Neculiti, who each denied past involvement in cybercrime or any current involvement in assisting Russian disinformation efforts or cyberattacks. Nevertheless, the EU sanctioned both brothers as well.

The EU said Stark and the Neculti brothers “enabled various Russian state-sponsored and state-affiliated actors to conduct destabilising activities including coordinated information manipulation and interference and cyber-attacks against the Union and third countries by providing services intended to hide these activities from European law enforcement and security agencies.”

The U.S. government today unsealed criminal charges against 16 individuals accused of operating and selling DanaBot, a prolific strain of information-stealing malware that has been sold on Russian cybercrime forums since 2018. The FBI says a newer version of DanaBot was used for espionage, and that many of the defendants exposed their real-life identities after accidentally infecting their own systems with the malware.

DanaBot’s features, as promoted on its support site. Image: welivesecurity.com.

Initially spotted in May 2018 by researchers at the email security firm Proofpoint, DanaBot is a malware-as-a-service platform that specializes in credential theft and banking fraud.

Today, the U.S. Department of Justice unsealed a criminal complaint and indictment from 2022, which said the FBI identified at least 40 affiliates who were paying between $3,000 and $4,000 a month for access to the information stealer platform.

The government says the malware infected more than 300,000 systems globally, causing estimated losses of more than $50 million. The ringleaders of the DanaBot conspiracy are named as Aleksandr Stepanov, 39, a.k.a. “JimmBee,” and Artem Aleksandrovich Kalinkin, 34, a.k.a. “Onix”, both of Novosibirsk, Russia. Kalinkin is an IT engineer for the Russian state-owned energy giant Gazprom. His Facebook profile name is “Maffiozi.”

According to the FBI, there were at least two major versions of DanaBot; the first was sold between 2018 and June 2020, when the malware stopped being offered on Russian cybercrime forums. The government alleges that the second version of DanaBot — emerging in January 2021 — was provided to co-conspirators for use in targeting military, diplomatic and non-governmental organization computers in several countries, including the United States, Belarus, the United Kingdom, Germany, and Russia.

“Unindicted co-conspirators would use the Espionage Variant to compromise computers around the world and steal sensitive diplomatic communications, credentials, and other data from these targeted victims,” reads a grand jury indictment dated Sept. 20, 2022. “This stolen data included financial transactions by diplomatic staff, correspondence concerning day-to-day diplomatic activity, as well as summaries of a particular country’s interactions with the United States.”

The indictment says the FBI in 2022 seized servers used by the DanaBot authors to control their malware, as well as the servers that stored stolen victim data. The government said the server data also show numerous instances in which the DanaBot defendants infected their own PCs, resulting in their credential data being uploaded to stolen data repositories that were seized by the feds.

“In some cases, such self-infections appeared to be deliberately done in order to test, analyze, or improve the malware,” the criminal complaint reads. “In other cases, the infections seemed to be inadvertent – one of the hazards of committing cybercrime is that criminals will sometimes infect themselves with their own malware by mistake.”

Image: welivesecurity.com

A statement from the DOJ says that as part of today’s operation, agents with the Defense Criminal Investigative Service (DCIS) seized the DanaBot control servers, including dozens of virtual servers hosted in the United States. The government says it is now working with industry partners to notify DanaBot victims and help remediate infections. The statement credits a number of security firms with providing assistance to the government, including ESET, Flashpoint, Google, Intel 471, Lumen, PayPal, Proofpoint, Team CYMRU, and ZScaler.

It’s not unheard of for financially-oriented malicious software to be repurposed for espionage. A variant of the ZeuS Trojan, which was used in countless online banking attacks against companies in the United States and Europe between 2007 and at least 2015, was for a time diverted to espionage tasks by its author.

As detailed in this 2015 story, the author of the ZeuS trojan created a custom version of the malware to serve purely as a spying machine, which scoured infected systems in Ukraine for specific keywords in emails and documents that would likely only be found in classified documents.

The public charging of the 16 DanaBot defendants comes a day after Microsoft joined a slew of tech companies in disrupting the IT infrastructure for another malware-as-a-service offering — Lumma Stealer, which is likewise offered to affiliates under tiered subscription prices ranging from $250 to $1,000 per month. Separately, Microsoft filed a civil lawsuit to seize control over 2,300 domain names used by Lumma Stealer and its affiliates.

Further reading:

Danabot: Analyzing a Fallen Empire

ZScaler blog: DanaBot Launches DDoS Attack Against the Ukrainian Ministry of Defense

Flashpoint: Operation Endgame DanaBot Malware

Team CYMRU: Inside DanaBot’s Infrastructure: In Support of Operation Endgame II

March 2022 criminal complaint v. Artem Aleksandrovich Kalinkin

September 2022 grand jury indictment naming the 16 defendants

Microsoft today released updates to plug at least 121 security holes in its Windows operating systems and software, including one vulnerability that is already being exploited in the wild. Eleven of those flaws earned Microsoft’s most-dire “critical” rating, meaning malware or malcontents could exploit them with little to no interaction from Windows users.

The zero-day flaw already seeing exploitation is CVE-2025-29824, a local elevation of privilege bug in the Windows Common Log File System (CLFS) driver.  Microsoft rates it as “important,” but as Chris Goettl from Ivanti points out, risk-based prioritization warrants treating it as critical.

This CLFS component of Windows is no stranger to Patch Tuesday: According to Tenable’s Satnam Narang, since 2022 Microsoft has patched 32 CLFS vulnerabilities — averaging 10 per year — with six of them exploited in the wild. The last CLFS zero-day was patched in December 2024.

Narang notes that while flaws allowing attackers to install arbitrary code are consistently top overall Patch Tuesday features, the data is reversed for zero-day exploitation.

“For the past two years, elevation of privilege flaws have led the pack and, so far in 2025, account for over half of all zero-days exploited,” Narang wrote.

Rapid7’s Adam Barnett warns that any Windows defenders responsible for an LDAP server — which means almost any organization with a non-trivial Microsoft footprint — should add patching for the critical flaw CVE-2025-26663 to their to-do list.

“With no privileges required, no need for user interaction, and code execution presumably in the context of the LDAP server itself, successful exploitation would be an attractive shortcut to any attacker,” Barnett said. “Anyone wondering if today is a re-run of December 2024 Patch Tuesday can take some small solace in the fact that the worst of the trio of LDAP critical RCEs published at the end of last year was likely easier to exploit than today’s example, since today’s CVE-2025-26663 requires that an attacker win a race condition. Despite that, Microsoft still expects that exploitation is more likely.”

Among the critical updates Microsoft patched this month are remote code execution flaws in Windows Remote Desktop services (RDP), including CVE-2025-26671, CVE-2025-27480 and CVE-2025-27482; only the latter two are rated “critical,” and Microsoft marked both of them as “Exploitation More Likely.”

Perhaps the most widespread vulnerabilities fixed this month were in web browsers. Google Chrome updated to fix 13 flaws this week, and Mozilla Firefox fixed eight bugs, with possibly more updates coming later this week for Microsoft Edge.

As it tends to do on Patch Tuesdays, Adobe has released 12 updates resolving 54 security holes across a range of products, including ColdFusion, Adobe Commerce, Experience Manager Forms, After Effects, Media Encoder, Bridge, Premiere Pro, Photoshop, Animate, AEM Screens, and FrameMaker.

Apple users may need to patch as well. On March 31, Apple released a huge security update (more than three gigabytes in size) to fix issues in a range of their products, including at least one zero-day flaw.

And in case you missed it, on March 31, 2025 Apple released a rather large batch of security updates for a wide range of their products, from macOS to the iOS operating systems on iPhones and iPads.

Earlier today, Microsoft included a note saying Windows 10 security updates weren’t available but would be released as soon as possible. It appears from browsing askwoody.com that this snafu has since been rectified. Either way, if you run into complications applying any of these updates please leave a note about it in the comments below, because the chances are good that someone else had the same problem.

As ever, please consider backing up your data and or devices prior to updating, which makes it far less complicated to undo a software update gone awry. For more granular details on today’s Patch Tuesday, check out the SANS Internet Storm Center’s roundup. Microsoft’s update guide for April 2025 is here.

For more details on Patch Tuesday, check out the write-ups from Action1 and Automox.