UAC Bypass Using WoW64 Logger DLL Hijack

SigmaHQ Detections@sigmaHQ

•updated Aug 12, 2024•0•16

This rule detects a User Account Control (UAC) bypass technique that leverages a WoW64 logger DLL hijack, specifically referencing UACMe method 30. It identifies process access events where the source image is located in 'C:\Windows\SysWOW64\', requests full access ('0x1fffff'), and exhibits an unknown call trace pattern starting with 'UNKNOWN(0000000000000000)|UNKNOWN(0000000000000000)|'. This combination of indicators suggests an attempt to elevate privileges by injecting a malicious DLL into a trusted process.