alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful UK Tax Phishing M2 2016-02-01"; flow:to_server,established; http.method; content:"POST"; http.uri; content:".php?&sessionid="; fast_pattern; content:"&securessl="; distance:0; http.request_body; content:"username="; depth:9; nocase; content:"&password="; distance:0; nocase; reference:md5,8a14eb5764c7c9d01b2b64430933036d; classtype:credential-theft; sid:2032278; rev:4; metadata:attack_target Client_Endpoint, created_at 2016_02_01, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)