alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Scam 2019-11-14"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"<title>Official Windows Notification"; nocase; fast_pattern; content:"Call Windows Technical Support"; nocase; distance:0; classtype:social-engineering; sid:2028971; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_14, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_21;)