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;)