A fake CAPTCHA scam is tricking Windows users into running PowerShell commands that install StealC malware and steal passwords, crypto wallets, and more.

The campaign exploits an Office vulnerability to deliver the modular XWorm RAT, chaining HTA, PowerShell, and in-memory .NET execution to sidestep detection and expand post-compromise control.

Malware has typically used files that it makes resident on a target machine to carry out an attack. But another class of malware called "fileless" does the opposite. The attack that the malware causes ...

A new fileless malware named PyLoose has been targeting cloud workloads to hijack their computational resources for Monero cryptocurrency mining. PyLoose is a relatively simple Python script with a ...

I was doing a standard review of Windows Defender Antivirus telemetry when I noticed an anomaly from a detection algorithm designed to catch a specific fileless technique. Telemetry showed a sharp ...

With increased deployment of security solutions on cloud infrastructure, hackers have started adopting detection evasion tactics from Windows desktop computers to cloud environments. One such tactic ...

Chinese-speaking threat actor APT10 has been using a sophisticated and sometimes fileless backdoor to target media, diplomatic, governmental, public sector, and think-tank targets, since at least ...