Tag: malware
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A Sneaky Hacking Tool Targeting AI Infrastructure Is Lurking in Victims’ Blind Spots
A new type of malware can worm deep into AI coding systems to steal data and logins”, and can flip a “death switch” to destroy files and keep out real users. First seen on wired.com Jump to article: www.wired.com/story/a-sneaky-hacking-tool-targeting-ai-infrastructure-is-lurking-in-victims-blind-spots/
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ClaudeFix-Malware: Cyberangriffe über Claude Shared Chats und ClickFix-Befehle
ClaudeFix-Malware: ClaudeFix missbraucht geteilte Claude-Chats, um Entwickler zur Installation des MacSync Stealers zu verleiten. Zscaler erklärt die Angriffsmethode. First seen on infopoint-security.de Jump to article: www.infopoint-security.de/claudefix-malware-cyberangriffe-ueber-claude-shared-chats-und-clickfix-befehle/a45818/
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Hackers Use Cruciferra Crypter to Disable EDR and Deploy XWorm, Remcos, and AsyncRAT
Hackers are abusing the Cruciferra crypter-as-a-service to systematically turn off endpoint detection and response (EDR) tools and stealthily deploy XWorm, Remcos, AsyncRAT, and other commodity malware in email-driven campaigns targeting multiple sectors worldwide. By combining BYOVD-based driver abuse, indirect syscalls and a polymorphic encryption engine with more than 90 mix-and-match crypto routines, Cruciferra has rapidly…
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Hackers Exploit SonicWall SMA Zero-Days to Gain Root Access and Deploy ORANGETAIL Webshell
An ongoing exploitation of two zero-day vulnerabilities in SonicWall Secure Mobile Access (SMA) devices. These vulnerabilities allowed a threat actor, identified as UTA0533, to gain root-level access, install persistent malware, and deploy the ORANGETAIL Java webshell on vulnerable VPN appliances. The affected SonicWall SMA models include the 1000 series, specifically models 6210, 7210, and 8200.…
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AgentBaiting Uses Fake AI Skills and MCP Servers to Deliver SmartLoader and StealC Malware
AgentBaiting is the clearest sign yet that AI agents and their capability ecosystems have become a first”‘class malware delivery surface, with FakeGit’s 7,600″‘repo operation pushing SmartLoader and StealC directly into AI Skills and MCP workflows. By turning agent”‘readable READMEs, public AI registries, and GitHub trust signals into a weaponized “AI capability supply chain,” attackers now…
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HOLLOWGRAPH Malware Turns Microsoft 365 Calendar Events Into Covert CommandControl Channels
HOLLOWGRAPH, a Windows malware implant that transforms Microsoft 365 calendar events into a covert command-and-control channel. This malware, which is highly likely linked to the Cavern modular backdoor framework, utilizes the Microsoft Graph API to retrieve tasks from operators and to exfiltrate stolen data via a compromised Microsoft 365 mailbox. This technique enables malicious communications…
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Hackers Hide C2 Traffic Inside Telegram While Targeting Middle East Governments
Hackers are increasingly blending malicious traffic with legitimate services, and a newly uncovered campaign shows how far this tactic has evolved. The activity has been attributed to a threat actor with links to East Asia, with researchers uncovering a previously undocumented malware suite comprising TELESHIM, MIXEDKEY, and a final-stage implant dubbed BINDCLOAK. The campaign demonstrates…
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Hackers Hide C2 Traffic Inside Telegram While Targeting Middle East Governments
Hackers are increasingly blending malicious traffic with legitimate services, and a newly uncovered campaign shows how far this tactic has evolved. The activity has been attributed to a threat actor with links to East Asia, with researchers uncovering a previously undocumented malware suite comprising TELESHIM, MIXEDKEY, and a final-stage implant dubbed BINDCLOAK. The campaign demonstrates…
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SonicWall SMA1000 flaws exploited as zero-days to push custom malware
Two recently disclosed SonicWall SMA1000 vulnerabilities were exploited in zero-day attacks for weeks, allowing threat actors to install custom malware on vulnerable VPN appliances. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/sonicwall-sma1000-flaws-exploited-as-zero-days-to-push-custom-malware/
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JadePuffer agentic attacks now target AI model data with ransomware
The JadePuffer autonomous AI agent has upgraded with custom malware called EncForge that focuses on encrypting AI assets, such as training datasets, vector databases, and model checkpoints. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/jadepuffer-agentic-attacks-now-target-ai-model-data-with-ransomware/
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FakeGit Campaign Uses 7,600 GitHub Repositories to Spread SmartLoader Malware
Cybersecurity researchers have discovered nearly 7,600 malicious GitHub repositories, out of which more than 800 pose as artificial intelligence (AI) skills or Model Context Protocol (MCP) servers to deliver a malware family known as SmartLoader as part of an ongoing campaign codenamed FakeGit.”FakeGit uses copied projects, lookalike developer profiles, convincing READMEs, and malicious ZIP First…
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Exposed Server Reveals AI-Assisted Phishing Toolkit Behind WebDAV Malware Campaign
A malware operator left its delivery server wide open, and Rapid7 pulled down the whole toolkit: 1,048 files spanning lure templates, filename-spoofing tests, execution experiments, droppers, builder notes, and two campaign chains. One was already live against Windows users in Mexico, delivering an infostealer through a fake government ID-lookup site over WebDAV.What makes it more…
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HOLLOWGRAPH malware turns Microsoft 365 calendars into an espionage channel
Microsoft 365 calendars have become a hiding place for espionage malware, with commands and stolen files stashed inside appointments dated to the year 2050, researchers from … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/07/20/hollowgraph-malware-microsoft-365-calendar/
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New HollowGraph malware uses Microsoft Graph for stealthy C2 comms
A malicious component dubbed HollowGraph uses the calendar feature in compromised Microsoft 365 mailboxes as a command-and-control channel to receive attacker commands and exfiltrate stolen data. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/new-hollowgraph-malware-uses-microsoft-graph-for-stealthy-c2-comms/
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HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050
A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions and smuggling out stolen files as attachments on calendar events dated to the year 2050.Group-IB, which named the malware HollowGraph, says the approach moves tasking and stolen data through legitimate Microsoft Graph API traffic, so…
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âš¡ Weekly Recap: WordPress RCE, SonicWall 0-Days, AI Service Attacks, SharePoint 0-Day and More
Tags: ai, attack, breach, data-breach, malware, rce, remote-code-execution, service, wordpress, zero-dayA single request should not be able to do this much. But this week, small inputs led to code execution, memory loss, stolen keys, and disabled security tools.The paths were often simple: exposed systems, weak checks, old drivers, fake prompts, and public code used for malware delivery. Some bugs were new. Others were already being…
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New HollowGraph Malware Hijacks Microsoft 365 Calendars for Covert C2 Communications
Researchers have linked HollowGraph malware to the Cavern framework after discovering its use of Microsoft 365 calendars and Microsoft Graph APIs as a stealthy C2 channel First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/hollowgraph-microsoft-calendars/
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FBI Arrests Florida Man in $220,000 Steam Crypto Theft Case
FBI agents arrested a Florida man accused of spreading Steam game malware that stole $220,000 in crypto, including $32,000 from a terminally ill cancer patient. First seen on hackread.com Jump to article: hackread.com/fbi-arrests-florida-man-steam-crypto-theft-case/
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Scams Now Drive Almost Half of All Malware Detections as Attackers Weaponise Everyday Trust
Scams accounted for almost 46% of all threat detections in the first half of 2026, making them the single largest category of malicious activity tracked by Gen Digital, the company behind Norton, Avast, LifeLock and MoneyLion, according to its newly published Threat Report H1 2026. The report, Gen’s first half-yearly threat publication after previously reporting…
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Researchers Uncover HOLLOWGRAPH: Malware That Hides Inside Microsoft 365 Calendar Invites
A previously undocumented strain of Windows malware is using Microsoft 365 calendar invites as a covert communications channel, allowing attackers to issue commands and exfiltrate stolen files from victim networks while hiding in plain sight among ordinary enterprise traffic, according to new research from the threat intelligence firm Group-IB. The malware, dubbed HOLLOWGRAPH, was detailed…
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182 Ransomware-Opfer in Deutschland bis Mai 2026 – Infostealer-Malware wird zum Einfallstor für Ransomware
First seen on security-insider.de Jump to article: www.security-insider.de/ransomware-2026-deutschland-opferzahlen-qilin-a-1bdee414e150bd5596d138cb26edb042/
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North Korean Contagious Interview Campaign Hides OTTERCOOKIE Malware in SVG Images
A sophisticated North Korean threat campaign dubbed “Contagious Interview” has resurfaced with new delivery techniques, leveraging weaponized SVG image files to deploy the OTTERCOOKIE malware while coinciding with a separate supply chain intrusion targeting the Ruby ecosystem. Security researchers tracking DPRK-linked activity note that the campaign continues to impersonate recruiters and job interview workflows, luring…
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New Russian-speaking threat actor UAT-11795 targets US and Europe with novel malware
First seen on scworld.com Jump to article: www.scworld.com/brief/new-russian-speaking-threat-actor-uat-11795-targets-us-and-europe-with-novel-malware
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MacOS malware hijacks Telegram sessions, targets crypto wallets
First seen on scworld.com Jump to article: www.scworld.com/brief/macos-malware-hijacks-telegram-sessions-targets-crypto-wallets
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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 106
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter CrashStealer: C++ macOS infostealer posing as crash reporter Lucide Proxy: Turning Student Web Proxies into DDoS Bots AsyncAPI npm organization compromised, 2M weekly downloads affected OkoBot: new sophisticated malware framework targets cryptocurrency users […]…
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Security Affairs newsletter Round 586 by Pierluigi Paganini INTERNATIONAL EDITION
A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. OpenSSL Fixes HollowByte Memory Exhaustion Bug Daxin: 13-Year-Old China-Linked Malware Found Still Active on Manufacturer’s Network…
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UAC-0145 Uses ClickFix CAPTCHAs to Infect Ukrainian Devices wih Malware
Russian state-sponsored threat actors have been observed leveraging the infamous ClickFix strategy to trick Ukrainian targets into infecting their own machines with data-stealing malware.According to the Computer Emergency Response Team of Ukraine (CERT-UA), the activity has been attributed to UAC-0145, a sub-cluster within Sandworm, an advanced hacking unit affiliated with GRU, Russia’s First seen on…
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Daxin: 13-Year-Old China-Linked Malware Found Still Active on Manufacturer’s Network
Researchers found China’s Daxin rootkit and a new Stupig backdoor on a Taiwan firm’s network, suggesting a stealthy intrusion dating back to 2013. Symantec’s Threat Hunter Team found Daxin running on a compromised host at a Taiwan-based subsidiary of a multinational high-tech manufacturer in 2026. Daxin is a Windows kernel-mode rootkit that Symantec first documented…