ET INFO Data-Public-Key and Data-Blocked-Page in HTTP Response

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.response_body;
content:"|3c|script|20|defer|20|data-public-key|3d|"; fast_pattern;
pcre:"/^(?:\x22|\x27)[A-Za-z0-9]{32}/R";
content:"data-blocked-page|3d|"; within:100;
target:dest_ip;
Raw source ET INFO Data-Public-Key and Data-Blocked-Page in HTTP Response · Suricata
Esc
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 INFO Data-Public-Key and Data-Blocked-Page in HTTP Response";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"|3c|script|20|defer|20|data-public-key|3d|"; fast_pattern;
    pcre:"/^(?:\x22|\x27)[A-Za-z0-9]{32}/R";
    content:"data-blocked-page|3d|"; within:100;
    classtype:misc-activity;
    sid:2060655; rev:1;
    metadata:affected_product Any, tls_state TLSDecrypt, created_at 2025_03_06, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Minor, updated_at 2025_03_06, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
    target:dest_ip;
)

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