
title: UAC Bypass Abusing Winsat Path Parsing - File
author: Christian Burkard
date: 2021/08/30
description: Detects the pattern of UAC Bypass using a path parsing issue in winsat.exe
  (UACMe 52)
detection:
  SELECTION_1:
    EventID: 11
  SELECTION_2:
    TargetFilename: C:\Users\\*
  SELECTION_3:
    TargetFilename:
    - '*\AppData\Local\Temp\system32\winsat.exe'
    - '*\AppData\Local\Temp\system32\winmm.dll'
  condition: (SELECTION_1 and SELECTION_2 and SELECTION_3)
falsepositives:
- Unknown
id: 155dbf56-e0a4-4dd0-8905-8a98705045e8
level: high
logsource:
  category: file_event
  product: windows
references:
- https://github.com/hfiref0x/UACME
status: experimental
tags:
- attack.defense_evasion
- attack.privilege_escalation
- attack.t1548.002
ruletype: SIGMA
