UAC Bypass Abusing Winsat Path Parsing - Process

Title: UAC Bypass Abusing Winsat Path Parsing - Process
Status: test
Description:Detects the pattern of UAC Bypass using a path parsing issue in winsat.exe (UACMe 52)
References:
  -https://github.com/hfiref0x/UACME
Author: Christian Burkard (Nextron Systems)
Date: 2021-08-30
modified:2024-12-01
Tags:

• -'attack.privilege-escalation'
• -'attack.t1548.002'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection:
    IntegrityLevel:
      -'High'
      -'System'
      -'S-1-16-16384'
      -'S-1-16-12288'

    ParentImage|endswith: '\AppData\Local\Temp\system32\winsat.exe'
    ParentCommandLine|contains: 'C:\Windows \system32\winsat.exe'
  condition:selection
Falsepositives:
  -Unknown
Level: high