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    Notepad++ Reconnaissance Command Sequence (Behavioral)

    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/)
    Daniel Miller@dxmiller
    •updated Feb 2, 2026•11•0•120

    This query hunts for the specific "reconnaissance batch" behavior observed in this campaign: a process piping netstat, systeminfo, or tasklist output into a text file (specifically a.txt as seen in the report, though looking for any single-letter text file is a good heuristic).

    Microsoft Sentinel (KQL)

    Tags

    T1195.002 - Compromise Software Supply ChainT1574 - Hijack Execution FlowT1059.003 - Windows Command ShellT1041 - Exfiltration Over C2 ChannelT1082 - System Information DiscoveryApplication EventWindowsWindows Defender AtpCVE-2025-49144CVE-2025-56383kql

    Found in

    • UAC-0099 Weaponizes Notepad++ Plugins for Malware SideloadingLast updated Jul 25, 2026
    • Active STX RAT Supply Chain Campaign by Leda ElacoateLast updated Jun 8, 2026

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