alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Fake Virus Phone Scam Landing Oct 19 M3"; flow:established,from_server; file_data; content:".net frame work file missing"; fast_pattern; nocase; content:"Debug malware error"; nocase; distance:0; content:"Please do not open"; nocase; distance:0; content:"avoid data corruption"; nocase; distance:0; content:"PLEASE DO NOT SHUT DOWN"; nocase; distance:0; content:"RESTART YOUR COMPUTER"; nocase; distance:0; classtype:social-engineering; sid:2021965; rev:4; metadata:created_at 2015_10_19, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_17;)