alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox botnet C2 traffic (url - confidence level: 75%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/d19ca32cb5a444ac8b87.php"; depth:25; nocase; http.host; content:"87.120.104.81"; depth:13; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1849095/; target:src_ip; metadata:confidence_level 75, first_seen 2026_07_12; classtype:trojan-activity; sid:91849095; rev:1;)