alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspicious UA Mozilla / 4.0"; flow:to_server,established; http.host; content:!"captive.apple.com"; endswith; content:!".google.com"; endswith; http.user_agent; content:"Mozilla / 4.0"; nocase; bsize:13; classtype:trojan-activity; sid:2013964; rev:6; metadata:created_at 2011_11_23, signature_severity Major, updated_at 2020_10_15;)