alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox botnet C2 traffic (url - confidence level: 50%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/f999fb4b778f4b7a.php"; depth:21; nocase; http.host; content:"89.110.110.198"; depth:14; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1691394/; target:src_ip; metadata:confidence_level 50, first_seen 2026_01_05; classtype:trojan-activity; sid:91691394; rev:1;)