UAC Bypass Tools Using ComputerDefaults

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

Sigma rule (View on GitHub)

 1title: UAC Bypass Tools Using ComputerDefaults
 2id: 3c05e90d-7eba-4324-9972-5d7f711a60a8
 3status: test
 4description: Detects tools such as UACMe used to bypass UAC with computerdefaults.exe (UACMe 59)
 5references:
 6    - https://github.com/hfiref0x/UACME
 7author: Christian Burkard (Nextron Systems)
 8date: 2021-08-31
 9modified: 2024-12-01
10tags:
11    - attack.defense-evasion
12    - attack.privilege-escalation
13    - attack.t1548.002
14logsource:
15    category: process_creation
16    product: windows
17detection:
18    selection:
19        IntegrityLevel:
20            - 'High'
21            - 'System'
22            - 'S-1-16-16384' # System
23            - 'S-1-16-12288' # High
24        Image: 'C:\Windows\System32\ComputerDefaults.exe'
25    filter:
26        ParentImage|contains:
27            - ':\Windows\System32'
28            - ':\Program Files'
29    condition: selection and not filter
30falsepositives:
31    - Unknown
32level: high

References

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