Executive Summary Following disclosure of the TraderTraitor attack against LayerZero in April 2026, SentinelOne identified an additional victim with the same macOS backdoors. Our analysis explores the mechanics of these backdoors and the expanded targeting against a victim in the IT services sector with no relationship to cryptocurrency trading. We also identified more weaponized GitHub repositories from the social engineering schemes used to target job seekers in these campaigns. This report…
An ongoing malware campaign uses SEO-optimized GitHub repositories to impersonate well-known software firms to push a previously undocumented information stealer called Rapuncel. [...]
This TSUBAME Report Overflow series discusses observation trends from TSUBAME sensors both in Japan and overseas, as well as other topics not covered in the JPCERT/CC Quarterly Report. This article covers monitoring results from April to June 2026. Note: Starting in FY2026, the JPCERT/CC Internet Threat Monitoring Report has been integrated into the JPCERT/CC Quarterly Report. Sharp Increase in Mirai-like Packets Targeting 23/TCP Observed in Early May 2026 In early May 2026, TSUBAME observed a…
Introduction Torrent trackers have long been abused for distributing malicious software, disguised as popular films, games, and other content. Our previous research has shown that cybercriminals repeatedly turn torrents as an initial infection vector, using trojanized cracks and installers to reach a large number of users. Installation guides for pirated software routinely instruct users to disable their antivirus, conditioning them to ignore potential threats they are inviting onto their…
The China-linked espionage group FamousSparrow has been using a new backdoor named SparroWocky in attacks on government organizations in Latin America. [...]
Government agencies are warning that Iranian state-linked hackers are using a Windows malware strain named CHOSEN BRICK to target dissidents, activists, and journalists worldwide. [...]
A banking malware operation active since mid-2025 has been using a toolkit named KREMLIN to install malicious Chrome and Edge extensions that steal credentials, session tokens, and sensitive data. [...]
Over the past year, our Global Emergency Response Team (GERT) has investigated several incidents involving the NightEagle group (APT-Q-95). This group has been active since at least 2023 and originally focused on organizations in Asia, as we reported previously. We have now identified attacks by the group targeting businesses in Russia. This post examines both known and new tools NightEagle used in its latest campaign. Initial access In most incidents, the attackers used compromised valid…
Hackers are actively exploiting a critical vulnerability in the WooCommerce Wholesale Lead Capture premium plugin for WordPress to upload a PHP backdoor. [...]
Researchers at Hudson Rock found that cybercriminals hijacked HBO Max’s verified Reddit account and used it to run 108 malicious ads over roughly 48 hours. The ads used HBO Max’s trusted corporate account to promote fake AI tools, developer software, and macOS utilities, lowering potential victims’ guards. Some ads directed users to convincing HBO lookalike sites that claimed to offer a native HBO Max app for macOS or a promotional download. But instead of providing an installer, the sites…
A browser extension called Twitch Enhanced Viewer | JeetBot, available in the official Chrome and Firefox stores, sends users' Twitch OAuth session tokens to a commercial bot service. [...]
Hackers compromised HBO Max's official Reddit account and used it to push malicious ads that launched ClickFix attacks to infect Windows and macOS devices with information-stealing malware. [...]
The pro-Ukraine hacktivist group Hacking Cat has evolved from carrying out website defacements and data leaks to more sophisticated and destructive attacks on Russian targets, researchers said.
Elastic Security Labs has tracked REF9334, a Brazilian banking malware operation, since May 2025. Its toolkit is called KREMLIN (as named by the malware author, Kr3mlin4rt1st), though nothing about the operation is Russian. Lures impersonate twelve Brazilian banks; error messages and code comments are written in Portuguese, and the operators' Ethereum transactions cluster during São Paulo working hours. Over 15 months and seven campaigns, they built a malicious browser extension that installs…
Threat actors linked to a China-aligned espionage group are exploiting a critical vulnerability (CVE-2026-51990) in Tencent's Sogou Input Method for Windows to deploy the GrayRabbit backdoor. [...]
Threat actors are exploiting critical and high-severity vulnerabilities in JFrog Artifactory to bypass authentication, gain administrative privileges, and deploy a Rust backdoor on vulnerable self-hosted servers. [...]
Threat actors are abusing trusted AI platforms to host malicious content, poison search results, and trick users into installing malware. Huntress examines campaigns targeting AI users through weaponized Claude Artifacts, shared AI conversations, sponsored search results, and ClickFix-style lures. [...]
Upgraded modular malware observed in attacks on Cisco Firewall Management Center (FMC) devicesCategories: Threat ResearchTags: Cyclops Blink, Cisco, Linux
Every wave of technology excitement creates a new opportunity for cyberattackers, and AI is no exception. Microsoft Threat Intelligence has published research showing a growing set of campaigns that impersonate popular AI platforms and tools, including ChatGPT, Microsoft Copilot, DeepSeek, and Claude.1 The goal is to make phishing, search-driven malware campaigns, and malvertising—which is malicious advertising that uses online ads to lure users to harmful sites, downloads, or redirect…
BlueMoon, a shared Chrome and Windows exploit kit, shows why “patch later” is becoming a dangerous gamble. Security updates are easy to put off. The browser still opens, Windows still works, and choosing to relaunch your browser or restart your computer later can feel harmless. But a newly documented exploit kit called “BlueMoon” shows how quickly patching delays can become dangerous. Proofpoint Researchers found four espionage groups using the same exploit chain against Chrome browsers running…
Multiple cyber-espionage groups deployed an exploit kit dubbed "BlueMoon" that leveraged zero-day vulnerabilities in Microsoft Windows and Google Chrome. [...]
Threat actors are exploiting GTA6 hype with fake leaked downloads spread via SEO poisoning, packed with RATs, infostealers, and wiper ransomware. Here’s what Huntress found.
A Linux rootkit targeting devices in F5 BIG-IP APM environments can intercept PHP file loading and inject a fileless web shell directly into memory, avoiding the need to write malicious code to disk. [...]
Executive Summary Since the release of our May 2026 report detailing adversarial misuse of artificial intelligence (AI), Google Threat Intelligence Group (GTIG) has observed forward leaning adversaries transition from basic prompting to agentic AI workflows and AI-enabled automation. In these operations, human-in-the-loop latency is dramatically reduced, compressing the traditional window for defenders to respond. In Q2 2026, GTIG observed threat actors compromise a cloud resource, then plan,…
Cisco Talos began an investigation after observing a DLL named "verification.google" executing from WebDAV at a Ukrainian government organization. We assess with moderate confidence that the attacks are not targeted at a particular organization, but are a part of a cryptocurrency and credentials-stealing operation using the Amatera stealer as the primary payload. Pivoting around the similar WebDAV behavior led to a second loader named "pf.ch" and allowed us to reconstruct its earlier delivery…
Cisco Talos is tracking a cryptocurrency-stealing campaign that abuses the Google Visualization API for command and control (C2), retrieving obfuscated JavaScript from a publicly published Google Sheets document and injecting it into the victim's browser session. The actors use a variation on ClickFix social engineering. Instead of convincing targets to run commands against the operating system, they convince targets to paste JavaScript into the Chrome address bar or install it into the…
A massive cybercriminal operation is leveraging thousands of compromised small-business websites to deliver ClickFix payloads stored in smart contracts on the BNB Smart Chain (BSC). [...]
OverviewA new Linux toolkit, identified by Rapid7 Labs, has been targeting organizations across South Korea’s automotive and media industries with minimal detection. The campaign made use of a HAProxy instance named “ted backdoor”, alongside trojanized versions of crond, agetty, atd, sshd, and polkitd. This previously undocumented framework enabled threat actors to execute remote commands on compromised servers, inject malicious scripts into web traffic, perform credential harvesting, and…
Introduction We continue tracking the activity of Toy Ghouls (also known as Bearlyfy, Laboo.boo, and Feral Wolf), a financially motivated group that has been targeting Russian organizations since 2025. The attackers initially relied exclusively on tools pulled from public GitHub repositories along with leaked Babuk and LockBit ransomware builders, later shifting to their own custom ransomware, GenieLocker. In early July 2026, we observed the group using a custom backdoor for the first time. We…
A malicious advertising campaign promoting a fake free TV-streaming service reached roughly 570,000 Meta users. The researchers who discovered the campaign found that its streaming-themed ads were aimed at Spanish-speaking users, with most observed victims located in Spain. One Meta campaign ran from June 11 through July 3, 2026, and the same banners were also used to distribute the malware through TikTok. The available data shows the ads’ reach, not the number of downloads or infections, but…
A Nemzetbiztonsági Szakszolgálat Nemzeti Kiberbiztonsági Intézet (NBSZ NKI) riasztást ad ki Magyarország Ügyészségének nevével és arculati elemeivel visszaélő, zsarolóvírus fertőzéshez vezető adathalász üzenetekről. A bejelentések alapján a támadók hamis, hivatalos megkeresés látszatát keltő leveleket küldenek, amelyekben ügyészségi alkalmazottak nevével élnek vissza. A kampány célja az, hogy a felhasználó a levélben szereplő hivatkozásra kattintson, majd a […]
Huntress is tracking a pattern across multiple customer environments where rogue ScreenConnect clients repeatedly spawn the Windows Script Host to execute a series of four VBScript files.
In this article Risk to enterprise environmentsAttack chain overviewMitigation and response recommendationsLearn more Microsoft Threat Intelligence has observed a human-operated intrusion campaign that abuses Microsoft Teams external collaboration to impersonate IT or helpdesk personnel and socially engineer users into granting an interactive remote session. Once remote control is established via RMM tools, the threat actor uses PowerShell to download and silently install a malicious MSI…
Searzhudin Tamirlanovich Aktulaev appeared in a San Francisco federal court on Monday after being arrested in Cyprus in May 2025 and extradited to the U.S. last week.
The group, which calls itself VantaCore, has targeted at least seven known victims, Russian cybersecurity firm F6 said in a report published this week.
Research by: Amit Yardeni Key Points A Chinese-speaking actor is now targeting Brazil. Check Point Research has uncovered a sustained campaign against Brazilian organizations, primarily government and educational institutions since mid-2025. We dubbed this group Gambling Goblin: a Chinese-speaking cybercrime cluster connected to a previously documented group, Earth Berberoka, that targeted gambling sites across Asia. It marks a shift from Brazil’s usual home-grown banking-trojan threats to a…
A California federal grand jury has indicted a Russian national for his role in a phishing campaign that infected thousands of freelancers with TVRAT and DarkVNC malware. [...]
Elastic Security Labs is tracking an emerging infostealer, REVSTEALER, under REF2859. This family has gained momentum in recent months, with higher distribution volume, and has emerged as a formidable threat, featuring a comprehensive credential harvester, an embedded sandbox scoring system, and a Polygon blockchain-based dead drop for resilience. Beyond credential theft, REVSTEALER targets gaming platforms for additional monetization; the developer clearly understands that victim accounts on…
In this article Attack chain overviewCampaign scope and targetingMitigation and protection guidanceReferencesLearn more Microsoft Defender Experts is tracking an active malware campaign that uses counterfeit software-download websites to impersonate trusted vendors and distribute malicious installers. The campaign has targeted users looking to download popular software and has resulted in compromises across multiple organizations and industries, primarily affecting China-based operations of…
We’ve seen scam sites built around Grand Theft Auto VI (GTA 6) targeting visitors in three different ways this year. In June, we looked at sites selling GTA 6 “early access” for hundreds of dollars in cryptocurrency. You paid, got nothing, and could not reverse the payment. In August, we found fake Extended Look and demo sites delivering an infostealer instead of a game. The site we examined this week looks like a GTA 6 fan countdown site but offers to sell a leaked copy of the game. It loads a…
In a report published Tuesday, Kaspersky said it first discovered NodeRabbit on a system in Afghanistan and later identified variants on systems in Egypt and Ethiopia.
Microsoft has published details about a Windows malware campaign it calls TerminalFix. The social engineering used to infect people is very similar to what we’ve seen in ClickFix campaigns. A website visitor is presented with a fake Cloudflare CAPTCHA which, when clicked, secretly copies a malicious command to their clipboard. Then they receive instructions on what they need to do to “prove they are human,” when in reality they are being instructed to execute the malicious command. After…
Anthropic has warned some Claude users that criminals are using information stealers to take over their accounts. Rather than guessing passwords or intercepting two-factor authentication (2FA) codes, the attackers steal the browser sessions that prove a user is already logged in. According to a warning email shared publicly by an affected user, the attackers used common infostealer malware to copy Claude login sessions from victims’ computers. They then used those sessions to access the…
While monitoring Mirage Kitten activity, we uncovered a previously undocumented malware family that we dubbed NodeRabbit. We identified the first sample on a system in Afghanistan. Further threat hunting revealed two additional, more advanced, variants: one on a system in Egypt and another on a system in Ethiopia. NodeRabbit is a cross-platform remote access trojan (RAT) built with Node.js. It targets Windows, Linux, and macOS. Its operators deliver it through spear-phishing messages on…
Introduction Beginning in 2024 Mandiant investigated a string of compromises affecting Brazilian financial services, retail, and eCommerce organizations. Google Threat Intelligence Group (GTIG) tracks this activity as BREEZE COMET (formerly UNC5669), a financially motivated threat actor specializing in manipulating payment systems and banking software in Brazil to conduct fraudulent transfers. This activity overlaps with operations publicly reported as Plump Spider and SHADOW-AETHER-064. In…
A new ClickFix variant dubbed TerminalFix uses fake Cloudflare CAPTCHA prompts on compromised websites to trick victims into running malicious PowerShell commands in Windows Terminal. [...]
Learn how the Spring Ring campaign abuses Microsoft Teams and voice phishing to deploy malware and target enterprise domain controllers. The post Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams appeared first on Unit 42.
In this article Attack chain overviewMitigation and protection guidanceLearn more Microsoft Threat Intelligence has observed a TerminalFix campaign, a variant of ClickFix, targeting organizations across multiple industries. The campaign uses compromised websites to display a fake Cloudflare CAPTCHA verification overlay that tricks users into copying and executing a malicious PowerShell command. While traditional ClickFix campaigns direct victims to the Windows Run dialog, TerminalFix campaigns…
On August 28, starting at approximately 2000 UTC eight malicious versions of the @7nohe/openapi-react-query-codegen package were published on npm and were available for approximately three hours. These malicious versions were trojanized with an updated version of the miasma ma...
Group-IB expone una operación mexicana de PhaaS dirigida a más de 20 instituciones financieras, con capacidades de phishing en tiempo real, vishing con IA y RAT para dispositivos móviles.
Key Takeaways The DFIR Report Offerings Check out our Products here and our Services here. Want a demo, more information on our services, pricing or just want to chat? Get in Touch Contact us today for pricing or a demo! Case Summary In March 2026, our team identified an SEO poisoning campaign leading to malware deployment […] The post BengalSEO Part 1: Anatomy of the Operation appeared first on The DFIR Report.
UAT-10147 is a highly capable Chinese-speaking intrusion actor operating a multi-platform post-exploitation ecosystem targeting IIS and Linux servers, combining search engine optimization (SEO) fraud monetization with advanced persistence and defense evasion techniques. The newly identified SPECTRE implant represents a significant evolution in commodity intrusion tooling, integrating cross-platform command-and-control (C2) operations, process injection, credential theft, anti-analysis…
On August 20, 2026, malicious versions of three Rust crates were published to crates.io from the account of their maintainer, droundy: arrayref@0.3.10, internment@0.8.7 and append-only-vec@0.1.9. The Rust Security Response Team does not believe the maintainer published them, a...
Huntress researcher uncovers post-Black Hat & DEF CON phishing campaign using X DMs & malicious documents to deliver AMOS, NetSupport RAT, and other malware.
<p>A year of MDR casework shows attackers repeatedly exploiting demand for AI tools</p>Categories: Threat ResearchTags: AI, malvertising, infostealer, Sophos X-Ops