Threats tagged 'windows update'

A malicious campaign is targeting French-speaking users in an attempt to steal passwords, payment details and banking details from people across France, according to researchers at the Institute for Strategic Studies (ISS).

A multi-stage malware execution chain originating from a ClickFix lure has been discovered, leading to the delivery of infostealing malware like LummaC2 and Rhadamanthys. The campaign utilizes steganography to hide malicious code within PNG images. Two distinct ClickFix lures were observed: a standard 'Human Verification' and a convincing fake Windows Update screen. The execution chain involves mshta.exe, PowerShell, and .NET assemblies, ultimately extracting and injecting shellcode into target processes. The steganographic technique encodes malicious data directly into image pixel data, using specific color channels for payload reconstruction and decryption in memory. This sophisticated approach helps evade signature-based detection and complicates analysis.

Malware#multi-stage#social engineeringGermany+7