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    mrmustard Stealer Bytecode Dropped in Hidden .tf_cache Directory

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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/)
    Duo Tech@duotech
    •updated Jul 24, 2026•0•0•0

    Detects the mrmustard stealer's compiled-bytecode artifacts (hw_probe.pyc, .lock_*, .ts_*) dropped in the hidden .tf_cache directory used to evade static source-code review.

    Sigma

    Tags

    T1027 - Obfuscated Files or InformationT1564.001 - Hidden Files and DirectoriesTA0005 - StealthFile CreationFile EventFile ModificationWindowsWindows Sysmonattack.t1027attack.t1564.001

    Found in

    • Supply Chain Attacks Targeting Research and Alibaba EcosystemsLast updated Aug 3, 2026

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