UAC Bypass Using WOW64 Logger DLL Hijack

Description

Detects the pattern of UAC Bypass using a WoW64 logger DLL hijack (UACMe 30)

Query · sigma

selection:
  SourceImage|contains: :\Windows\SysWOW64\
  GrantedAccess: '0x1fffff'
  CallTrace|startswith: UNKNOWN(0000000000000000)|UNKNOWN(0000000000000000)|
condition: selection

Known false positives

  • Unknown
Raw source UAC Bypass Using WOW64 Logger DLL Hijack · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: UAC Bypass Using WOW64 Logger DLL Hijack
id: 4f6c43e2-f989-4ea5-bcd8-843b49a0317c
status: test
description: Detects the pattern of UAC Bypass using a WoW64 logger DLL hijack (UACMe 30)
references:
    - https://github.com/hfiref0x/UACME
author: Christian Burkard (Nextron Systems)
date: 2021-08-23
modified: 2022-10-09
tags:
    - attack.privilege-escalation
    - attack.t1548.002
logsource:
    category: process_access
    product: windows
detection:
    selection:
        SourceImage|contains: ':\Windows\SysWOW64\'
        GrantedAccess: '0x1fffff'
        CallTrace|startswith: 'UNKNOWN(0000000000000000)|UNKNOWN(0000000000000000)|'
    condition: selection
falsepositives:
    - Unknown
level: high

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