ET MALWARE Numinon CnC Activity via WebSockets

Query · suricata

flow:established,to_server;
http.header_names;
content:"|0d 0a|X-Punkin-Agent-ID|0d 0a|";
http.user_agent;
content:"PunkinAgent/"; startswith; fast_pattern;
Raw source ET MALWARE Numinon CnC Activity via WebSockets · Suricata
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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 Numinon CnC Activity via WebSockets";
    flow:established,to_server;
    http.header_names;
    content:"|0d 0a|X-Punkin-Agent-ID|0d 0a|";
    http.user_agent;
    content:"PunkinAgent/"; startswith; fast_pattern;
    reference:url,activecountermeasures.com/malware-of-the-day-multi-modal-c2-communication-numinon-c2/;
    classtype:trojan-activity;
    sid:2063441; rev:1;
    metadata:created_at 2025_07_14, signature_severity Unknown, updated_at 2025_07_14;
)

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