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    Mastra NPM - Temp Folder 24-Hex File Deletion

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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/)
    Ibrahim Saud@tektrix
    •updated Jun 19, 2026•0•0•1

    Detects node.exe deleting a 24-character hexadecimal JavaScript file from the Temp directory after execution, which is indicative of the Mastra NPM supply chain attack.

    Microsoft Sentinel (KQL)

    Tags

    T1070.004 - File DeletionT1195.001 - Compromise Software Dependencies and Development ToolsDS0022 - FileTA0005 - Defense EvasionTA0001 - Initial AccessFile DeletionWindowsWindows Defender Atpkql

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