alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Successful Horde Webmail Phish 2015-08-21"; flow:established,to_client; file_data; content:"<title>|2e 2e 3a 3a|Account Details"; fast_pattern; content:"Successfully Submitted|3a 3a 2e 2e|</title>"; distance:1; content:"Your request has been received"; distance:0; content:"and will be processed shortly."; distance:1; classtype:credential-theft; sid:2031726; rev:6; metadata:attack_target Client_Endpoint, created_at 2015_08_21, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2022_03_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)