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    LockAppHost deploys XMRig miner and suspends competitor processes

    avatar
    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 7, 2026•0•0•0

    This rule detects potential cryptocurrency mining activity where known miner executables (specifically XMRig) or malicious scripts/processes are masquerading as or being spawned by 'LockAppHost.exe' or 'LockAppHost14a02b.exe'. It also monitors for subsequent attempts by these processes to terminate security-related tasks or establish persistence via registry run keys.

    Microsoft Sentinel (KQL)

    Tags

    T1496 - Resource HijackingT1547.001 - Registry Run Keys / Startup FolderTA0040 - ImpactTA0003 - PersistenceProcess CreationProcess TerminationRegistry Value ModificationMalware DetectedWindowsWindows Defender Atpkql

    Found in

    • REVSTEALER Infostealer Ramps Up With Follow-on ModulesLast updated Sep 7, 2026
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    • REVSTEALER: Sophisticated Infostealer with Polygon C2 ResilienceLast updated Sep 6, 2026
    • REVSTEALER: Sophisticated Infostealer with Polygon C2 ResilienceLast updated Sep 6, 2026

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