ET HUNTING POST Request to .cfd Domain

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.host;
content:".cfd"; endswith; fast_pattern;
http.header_names;
content:!"|0d 0a|referer|0d 0a|"; nocase;
target:src_ip;
Raw source ET HUNTING POST Request to .cfd Domain · 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 HUNTING POST Request to .cfd Domain";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host;
    content:".cfd"; endswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|referer|0d 0a|"; nocase;
    classtype:misc-activity;
    sid:2065886; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_11_24, deployment Perimeter, deployment SSLDecrypt, performance_impact Significant, confidence Low, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_24;
    target:src_ip;
)

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