Detectionhightest

UAC Bypass Tools Using ComputerDefaults

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

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Christian Burkard (Nextron Systems)Created Tue Aug 31Updated Sun Dec 013c05e90d-7eba-4324-9972-5d7f711a60a8windows

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

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