ET HUNTING Suspicious HTTP POST Only Containing Pass - Possible Phishing

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"pass="; nocase; depth:5; fast_pattern;
content:!"&"; distance:0;
Raw source ET HUNTING Suspicious HTTP POST Only Containing Pass - Possible Phishing · 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 Suspicious HTTP POST Only Containing Pass - Possible Phishing";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"pass="; nocase; depth:5; fast_pattern;
    content:!"&"; distance:0;
    classtype:credential-theft;
    sid:2031524; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_01_14, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2021_01_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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