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    Linux Base64 Encoded Command Piped to Shell

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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/)
    SigmaHQ Detections@sigmaHQ
    •updated Aug 12, 2024•3•0•29

    Detects suspicious command-line activity on Linux systems where base64 encoded input is piped directly into a shell for execution. This technique is often used by adversaries for defense evasion and to obfuscate malicious commands.

    Sigma

    Tags

    TA0005 - Defense EvasionT1140 - Deobfuscate/Decode Files or InformationCommand ExecutionProcess CreationLinuxattack.defense-evasionattack.t1140

    Found in

    • Salt Typhoon Cyber Espionage Targeting Telecommunications and GovernmentLast updated May 25, 2026
    • Salt Typhoon Cyber Espionage Targeting Telecommunications and GovernmentLast updated May 4, 2026

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