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.

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 ...

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 wave of attacks that have recently affected banks and other enterprises used open-source penetration testing tools loaded directly into memory instead of traditional malware, making their detection ...

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 ...

Cybercriminals are increasingly infecting computers with malware that resides only in memory in order to make their attacks harder to detect. Recent attacks launched with the Angler exploit kit — a ...

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 ...