alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Windows 7)"; flow:to_server,established; http.user_agent; content:"Windows 7"; depth:9; classtype:bad-unknown; sid:2026522; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_10_18, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_26;)