alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Email Verification/Upgrade Phishing Landing 2018-01-22"; flow:established,to_client; file_data; content:"<title>Email Verification</title>"; nocase; fast_pattern; content:"Sign in to upgrade your mailbox"; nocase; distance:0; content:"Mail Admin"; nocase; distance:0; classtype:social-engineering; sid:2025229; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_01_22, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2019_07_26;)