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    LockAppHost UAC Bypass via CMSTP /au INF-based Elevation

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    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Arnold Chan@slaz
    •updated Sep 6, 2026•0•0•0

    Detects the execution of cmstp.exe with the /au parameter, which is commonly used to install malicious INF files, when initiated by LockAppHost.exe. This pattern is often indicative of an attempt to bypass application control or achieve privilege escalation by leveraging the legitimate Microsoft Connection Manager Profile Installer.

    Microsoft Sentinel (KQL)

    Tags

    T1218.003 - CMSTPTA0005 - StealthProcess CreationCommand ExecutionWindowsWindows SysmonWindows Defender Atpkql

    Found in

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