alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful Citizenbank Phish 2016-05-24 M2";
flow:from_client,established;
http.method;
content:"POST";
http.request_body;
content:"&UserID=|25|3C|25|3Fphp+echo|25|28|25|24Username"; fast_pattern;
content:"&email="; distance:0;
content:"&epass="; distance:0;
content:"&Q1="; distance:0;
classtype:credential-theft;
sid:2031988; rev:3;
metadata:attack_target Client_Endpoint, created_at 2016_05_24, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_07_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)