alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Dropbox Phishing Landing 2018-01-18"; flow:established,to_client; file_data; content:"<title"; nocase; content:"Dropbox"; nocase; within:25; content:"Select Your Email Provider"; nocase; distance:0; fast_pattern; classtype:social-engineering; sid:2025206; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_01_18, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2019_07_26;)