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    Outbound Telnet C2 from Compromised IOS XR Router Binary

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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/)
    Arnold Chan@slaz
    •updated Sep 4, 2026•0•0•0

    Detects outbound Telnet traffic initiating with a specific magic byte sequence ('|FF FB|') characteristic of the Fire Ant malware's command-and-control communication.

    Suricata

    Tags

    T1071 - Application Layer ProtocolT1205 - Traffic SignalingTA0005 - StealthTA0003 - PersistenceNetwork Connection OutboundIDS IPS AlertNetwork GenericSnort IDSSuricata IDSTCPTrojan Activity

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