alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Fake AV Phone Scam Landing Sept 21 2015"; flow:established,to_client; file_data; content:"malware error 895-system 32.exe"; nocase; fast_pattern; content:"RESOLVE THE ISSUE ON TOLL FREE - 1-855-"; nocase; content:"DO NOT SHUT DOWN OR RESTART"; nocase; classtype:social-engineering; sid:2021811; rev:3; metadata:created_at 2015_09_22, confidence High, signature_severity Minor, updated_at 2019_08_16;)