ET PHISHING CoGUI 404 Response 2026-02-04

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.response_body;
content:"|7b 22|code|22 3a|404|2c 22|message|22 3a 22 2f|open|2f|visitors|2f|info|2f|validateHuman|20|Not|20|Found|22 7d|"; fast_pattern;
Raw source ET PHISHING CoGUI 404 Response 2026-02-04 · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET PHISHING CoGUI 404 Response 2026-02-04";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"|7b 22|code|22 3a|404|2c 22|message|22 3a 22 2f|open|2f|visitors|2f|info|2f|validateHuman|20|Not|20|Found|22 7d|"; fast_pattern;
    classtype:credential-theft;
    sid:2067327; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2026_02_05, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Phishing, tag CoGUI, tag CoAceV, updated_at 2026_02_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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