alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox botnet C2 traffic (url - confidence level: 100%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/2/index.php"; depth:12; nocase; http.host; content:"a2b5caf8.buzz"; depth:13; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1779938/; target:src_ip; metadata:confidence_level 100, first_seen 2026_04_01; classtype:trojan-activity; sid:91779938; rev:1;)