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    Cephalus Defense Evasion And AV Impairment

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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/)
    Tim Peck@timpeck
    •updated Nov 6, 2025•2•1•68

    Detects Cephalus ransomware behavior, specifically the deletion of Volume Shadow Copies and tampering with Windows Defender settings, which are common precursor activities to encryption.

    YARA-L

    Tags

    TA0005 - Defense EvasionT1562.001 - Disable or Modify ToolsT1490 - Inhibit System RecoveryTA0040 - ImpactProcess CreationCommand ExecutionPowershell Script ExecutionWindowsWindows Defender AvWindows SysmonWindows Eventlog SecurityRANSOMWARECEPHALUSDEFENSE_EVASION

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