alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Shared Adobe PDF Phish 2016-11-17"; flow:to_server,established; http.method; content:"POST"; http.request_body; content:"email="; depth:6; nocase; content:"&password="; nocase; distance:0; content:"&Upgrade="; nocase; distance:0; fast_pattern; classtype:credential-theft; sid:2032190; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_11_17, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)