alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful HM Revenue & Customs Phish M2 Apr 07 2017";
flow:to_server,established;
http.method;
content:"POST";
http.request_body;
content:"cnumber="; depth:8; nocase; fast_pattern;
content:"&expm="; nocase; distance:0;
content:"&expy="; nocase; distance:0;
content:"&cvv="; nocase; distance:0;
content:"&cname="; nocase; distance:0;
content:"&submitForm="; nocase; distance:0;
classtype:credential-theft;
sid:2024185; rev:3;
metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_04_07, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)