alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Horde Webmail Phish 2015-08-21"; flow:to_server,established; http.method; content:"POST"; http.request_body; content:"Horde="; nocase; fast_pattern; content:"&actionID"; nocase; distance:0; content:"&imapuser"; nocase; distance:0; content:"&pass="; distance:0; content:"&loginButton="; nocase; classtype:credential-theft; sid:2031821; rev:4; metadata:attack_target Client_Endpoint, created_at 2015_08_21, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_13, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)