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    All Detections

    Powershell Amsi Bypass Writeint32

    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/)
    Ravi Asakapalli@Ravishankaraskp
    •updated May 22, 2026•0•126

    Detects PowerShell scripts attempting to overwrite the amsiContext buffer using Runtime.InteropServices.Marshal.WriteInt32 to disable AMSI scanning.

    YARA-L

    Tags

    T1562.001 - Disable or Modify ToolsT1059.001 - PowerShellTA0005 - Defense EvasionS1029 - AuTo StealerTA0002 - ExecutionScript ExecutionPowershell Script ExecutionWindowsWindows Eventlog PowershellWindows SysmonWindows Eventlog Securityattack.defense-evasionattack.t1562.001attack.t1059.001

    Found in

    • InstallFix Campaign Distributes RedLine via Fake AI PagesLast updated May 6, 2026
    • InstallFix Campaign Distributes RedLine via Fake AI PagesLast updated May 6, 2026

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