alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Adobe Shared Document Phish Landing 2015-11-14"; flow:established,from_server; file_data; content:"<title>Adobe PDF</title>"; fast_pattern; nocase; content:"Adobe PDF Online"; nocase; distance:0; content:"You are not signed in yet"; nocase; distance:0; content:"Confirm your identity"; nocase; distance:0; content:"receiving email account to view document"; nocase; distance:0; classtype:social-engineering; sid:2031737; rev:4; metadata:created_at 2015_11_14, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_17;)