alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Successful Mailbox Update Phish 2016-02-17 M2"; flow:to_client,established; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"Your e-mail account will be verify"; nocase; fast_pattern; content:"DO NOT RESEND"; nocase; distance:0; content:"MESSAGE IS FROM THE SYSTEM ADMIN"; nocase; distance:0; classtype:credential-theft; sid:2031968; rev:3; metadata:attack_target Client_Endpoint, created_at 2016_02_17, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_06_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)