alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING PDF Cloud Phishing Landing 2018-04-19"; flow:established,to_client; file_data; content:"<title>Sign In - PDF Cloud"; nocase; fast_pattern; content:"href=|22|index_files/adobe.css"; nocase; distance:0; content:"Sign in with your email address to view or download attachment"; nocase; distance:0; classtype:social-engineering; sid:2025515; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_04_19, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2019_07_26;)