alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Mailbox Shutdown Phishing Landing 2017-12-11"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"<title>"; nocase; depth:300; content:"Secure Email Server|20 3a 3a|"; fast_pattern; nocase; within:100; classtype:social-engineering; sid:2025678; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_12_11, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2020_08_24;)