ET HUNTING CoGUI Fingerprint Activity

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET HUNTING CoGUI Fingerprint Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:11;
    content:"/api/verify"; fast_pattern;
    http.content_type;
    content:"application/json";
    http.request_body;
    content:"event_id";
    content:"client_ua";
    content:"honeypot";
    content:"behavior";
    classtype:bad-unknown;
    sid:2070062; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_06_25, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Minor, tag Phishing, tag CoGUI, updated_at 2026_06_25, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)