alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Paypal (DE) Phish 2016-12-19"; flow:to_server,established; content:"|0d 0a 0d 0a|t1="; fast_pattern; http.method; content:"POST"; http.request_body; content:"t1="; depth:3; nocase; content:"|25|40"; distance:0; content:"&t2="; nocase; distance:0; http.start; pcre:"/^POST\x20(?<var>[^\x20]+).+Referer\x3a\x20[^\r\n]+(?P=var)[\r\n]+/si"; classtype:credential-theft; sid:2032727; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_12_19, 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;)