Malware

Pierluigi Paganini October 09, 2026
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 tools this week, Microscan and FishHub, both built and run by a Beijing-based company with direct government contracts. The tools were used to scan, and in […]

Pierluigi Paganini October 07, 2026
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 Cloudflare’s standard bot check. The fake page asks you to run a command, supposedly to confirm you’re not a bot, and that command quietly downloads and installs an […]

Pierluigi Paganini October 04, 2026
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 Deployed Through BYOVD   Storm-3168: Agentic-driven cloud attacks using compromised service principals   Don’t Call Us, We’ll Call Your APIs | TraderTraitor Backdoors Resurface on Victim With No Crypto Ties   […]

Pierluigi Paganini October 04, 2026
Warlock Ransomware Still Exploits Year-Old SharePoint Flaws to Hit Critical Infrastructure

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 exploiting a chain of SharePoint zero-days collectively dubbed ToolShell. More than a year later, the same group is still using that door, and it’s still getting in. Symantec tracks the […]

Pierluigi Paganini October 03, 2026
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 scanning on VirusTotal, buried inside a disguised Zoom client. They first spotted it on September 15, clearly still under construction, and within two days watched it move […]

Pierluigi Paganini October 03, 2026
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 since September 2025 that it calls UAT-11587, and by July 2026 the group had hit at least 16 government and policy organizations across eight […]

Pierluigi Paganini October 01, 2026
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 web leak site, the Tor website the group used to threaten victims with publishing stolen files unless they paid up. That single action locked down more […]

Pierluigi Paganini September 30, 2026
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 Huntress researchers caught it in action across at least 40 incidents. A Custom GPT (now simply called a GPT) is essentially a version of ChatGPT […]

Pierluigi Paganini September 28, 2026
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 days and found 482 companies with exposed AI accounts and credentials. Of those, 295 appeared in active logs during that period, suggesting the exposure is recent […]

Pierluigi Paganini September 28, 2026
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 what JADEPUFFER does inside Azure. Sysdig first spotted the group’s activity in July 2026 and called it the first documented agentic ransomware operation. Microsoft tracks the same […]