ET MALWARE TA829 CnC Check-in - VIVAT Variant

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"|ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00|"; startswith; fast_pattern;
pcre:"/^(?:[A-Fa-f0-9]{2}\-){5}[A-Fa-f0-9]{2}\x40/R";
content:"|40|exist";
content:"|40|VIVAT|40|";
target:dest_ip;
Raw source ET MALWARE TA829 CnC Check-in - VIVAT Variant · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA829 CnC Check-in - VIVAT Variant";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"|ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00|"; startswith; fast_pattern;
    pcre:"/^(?:[A-Fa-f0-9]{2}\-){5}[A-Fa-f0-9]{2}\x40/R";
    content:"|40|exist";
    content:"|40|VIVAT|40|";
    classtype:command-and-control;
    sid:2063200; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2025_05_30, deployment Perimeter, confidence High, signature_severity Major, tag TA829, updated_at 2025_06_27, former_sid 2862009;
    target:dest_ip;
)

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