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Channel: Malware Archives - Security Affairs
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How a leaked builder of XWorm turned a remote access trojan into a...

Netskope tracks four XWorm versions in the wild, 46 plugins, and new tools for location, audio and live browser control, with detections up fourfold. Netskope Threat Labs has been following XWorm...

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Anthropic Shows How Small AI Models Could Replicate Across IoT Devices

Anthropic researchers show how small AI models could autonomously replicate across IoT devices, raising concerns about adaptive, AI-powered botnets. Anthropic published a paper this week that should...

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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 118

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter ClingSTUN Linux Backdoor Abuses Public STUN...

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Bitdefender finds preinstalled Android malware you can’t uninstall, seen in...

Bitdefender finds Midnight Mimosa, preinstalled Android malware on cheap MediaTek phones that fakes ad clicks, drops apps and builds a proxy botnet. Bitdefender researchers discovered a campaign...

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Silent Ransom Group Allegedly Extorted $207 Million Without Encrypting Files

Silent Ransom Group allegedly extorted $207 million from 27 law firms in six months using phone calls and social engineering, not encryption. Silent Ransom Group doesn’t rely on encryption. No malware...

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US Disrupts China-Linked Integrity Tech ‘s Cyber Espionage Tools

DOJ and FBI seized China-linked hacking tools Microscan and FishHub, linked to Integrity Tech and attacks on critical infrastructure worldwide. The Justice Department and FBI took down two hacking...

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CERT-UA: Fake Cloudflare Checks Deliver LunexStealer Malware

Over 100 hacked websites used fake Cloudflare checks to trick visitors into installing LunexStealer through ClickFix commands. The lure is the now-familiar ClickFix technique, dressed up as...

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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 117

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Lunex Unmasked: A New Information Stealer...

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Warlock Ransomware Still Exploits Year-Old SharePoint Flaws to Hit Critical...

Warlock ransomware continues to exploit unpatched SharePoint flaws to breach water utilities, telecoms, governments, and universities worldwide. Warlock ransomware made headlines back in mid-2025 for...

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Fake Zoom installer hides macOS backdoor CloudSyncD

Jamf Threat Labs details CloudSyncD, a fake macOS Zoom installer that hides a phished password using invisible zero-width Unicode characters. Jamf Threat Labs found CloudSyncD while doing routine...

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Antino Backdoor Lets China-Linked UAT-11587 Turn Microsoft 365 Into a C2 Channel

Cisco Talos details UAT-11587, a China-linked group using the Antino backdoor and Microsoft 365 as cover to spy on Asian governments. Cisco Talos has been tracking a cluster of espionage activity...

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Operation KillSwitch: Police Dismantle KillSec Ransomware Group

Operation KillSwitch: Europol says the KillSec ransomware group, allegedly led by a 16-year-old, was dismantled after attacks on about 1,000 victims. Law enforcement seized control of KillSec ‘s dark...

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Attackers Abuse ChatGPT Custom GPTs to Deploy a Full-Featured RAT

Threat actors abused fake ChatGPT Custom GPTs and ClickFix to deliver a multi-stage RAT. ChatGPT’s Custom GPT feature is the latest legitimate surface being turned into a delivery mechanism, and...

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AI Accounts Are Becoming the New Target for Infostealers

Infostealers are exposing corporate AI accounts, sessions and API keys, giving attackers access to sensitive data, compute and connected systems. SOCRadar analyzed stealer log data from the last 90...

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Storm-3168, Linked to JADEPUFFER, Abused Stolen Azure Identities

Microsoft details Storm-3168, the JADEPUFFER-linked actor that used stolen service principals to delete Azure storage in minutes and harvest keys. Microsoft just published the first detailed look at...

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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 116

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Threat Intel | One Kit, Forty Companies: How a...

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ClickFix Campaign Abuses Trusted Websites to Deploy Psychedelic Stealer

Attackers hijacked Ukrainian websites to deliver a fake Cloudflare CAPTCHA that installs Psychedelic Stealer and steals browser and crypto credentials. Psychedelic Stealer is being distributed through...

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AI-Powered CARBONATO Botnet Steals Credentials to Fund Its Own LLM Gateway

CARBONATO exploits exposed Docker daemons, installs an AI agent, steals API keys and spreads across networks with autonomous command execution. CARBONATO is a Docker-based botnet that has been active...

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Ryuk Member Karen Vardanyan Sentenced to Two Years in U.S. Prison

Ryuk member Karen Vardanyan was sentenced to 24 months in U.S. prison after extradition from Ukraine and ordered to pay $1.2M in restitution. Karen Vardanyan, a 35-year-old Armenian citizen who went...

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CLOSEDQUORUM, the malware that asks four AI models what to do next

Cisco Talos finds CLOSEDQUORUM, malware that lets four commercial AI models vote on its next move, with no human operator required. Cisco Talos found malware, dubbed CLOSEDQUORUM, that holds a vote...

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