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    Malicious curl Download of update_ms.msi Disguised as Windows Update

    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/)
    Luís Marques@remotecodeexecution
    •updated today•0•0•0

    This rule detects the Download of the stager for the msaRAT directly from the IP marked as IOC

    Sigma

    Tags

    T1105 - Ingress Tool TransferT1036 - MasqueradingTA0011 - Command and ControlTA0005 - StealthProcess CreationWindowsWindows SysmonWindows Eventlog Securityattack.t1105attack.t1036

    Found in

    • Chaos Ransomware Group Deploys msaRAT via Headless BrowsersLast updated Jul 23, 2026

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