ET PHISHING Tripod/Lycos Form Submission - Possible Successful Phish

Query · suricata

flow:from_client,established;
http.method;
content:"POST";
http.uri;
content:"/_zbl.ajax?m="; depth:13; fast_pattern;
content:"&a=addResponse"; distance:0;
http.header;
content:".tripod.com|0d 0a|";
content:".tripod.com";
http.request_body;
content:"data|25|5Bresponse|25|5D|25|5B"; depth:21;
Raw source ET PHISHING Tripod/Lycos Form Submission - Possible Successful Phish · 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 PHISHING Tripod/Lycos Form Submission - Possible Successful Phish";
    flow:from_client,established;
    http.method;
    content:"POST";
    http.uri;
    content:"/_zbl.ajax?m="; depth:13; fast_pattern;
    content:"&a=addResponse"; distance:0;
    http.header;
    content:".tripod.com|0d 0a|";
    content:".tripod.com";
    http.request_body;
    content:"data|25|5Bresponse|25|5D|25|5B"; depth:21;
    classtype:credential-theft;
    sid:2032015; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2016_05_24, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_07_20, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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