sigmahighHunting

UAC Bypass Tools Using ComputerDefaults

Detects tools such as UACMe used to bypass UAC with computerdefaults.exe (UACMe 59)

MITRE ATT&CK

defense-evasionprivilege-escalation

Detection Query

selection:
  IntegrityLevel:
    - High
    - System
    - S-1-16-16384
    - S-1-16-12288
  Image: C:\Windows\System32\ComputerDefaults.exe
filter:
  ParentImage|contains:
    - :\Windows\System32
    - :\Program Files
condition: selection and not filter

Author

Christian Burkard (Nextron Systems)

Created

2021-08-31

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/hfiref0x/UACME

Tags

attack.defense-evasionattack.privilege-escalationattack.t1548.002

Raw Content

title: UAC Bypass Tools Using ComputerDefaults
id: 3c05e90d-7eba-4324-9972-5d7f711a60a8
status: test
description: Detects tools such as UACMe used to bypass UAC with computerdefaults.exe (UACMe 59)
references:
    - https://github.com/hfiref0x/UACME
author: Christian Burkard (Nextron Systems)
date: 2021-08-31
modified: 2024-12-01
tags:
    - attack.defense-evasion
    - attack.privilege-escalation
    - attack.t1548.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        IntegrityLevel:
            - 'High'
            - 'System'
            - 'S-1-16-16384' # System
            - 'S-1-16-12288' # High
        Image: 'C:\Windows\System32\ComputerDefaults.exe'
    filter:
        ParentImage|contains:
            - ':\Windows\System32'
            - ':\Program Files'
    condition: selection and not filter
falsepositives:
    - Unknown
level: high