alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Dynamic Folder Phishing M1 2016-09-26"; flow:to_server,established; content:"|0d 0a 0d 0a|email="; fast_pattern; http.method; content:"POST"; http.request_body; content:"email="; nocase; content:"&pass"; nocase; distance:0; http.start; pcre:"/^POST[^\r\n]+(?P<hash>[a-f0-9]{32})\/(?:[^\r\n]+\r\n)+Referer\x3a\x20http(s)?:\/\/[^\r\n]+(?P=hash)/mi"; classtype:credential-theft; sid:2032699; rev:5; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_09_26, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_10_30, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)