alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful Mailbox Update Phish 2016-02-17";
flow:to_server,established;
content:"|0d 0a 0d 0a|username="; fast_pattern; nocase;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"username="; depth:9; nocase;
content:"&email="; nocase;
content:"&pass"; nocase;
classtype:credential-theft;
sid:2029655; rev:5;
metadata:attack_target Client_Endpoint, created_at 2016_02_17, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_10_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)