alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox payload delivery (url - confidence level: 90%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/3775/"; depth:6; nocase; http.host; content:"rsconline.org"; depth:13; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1773060/; target:src_ip; metadata:confidence_level 90, first_seen 2026_03_21; classtype:trojan-activity; sid:91773060; rev:1;)