alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox payload delivery (url - confidence level: 75%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/"; depth:1; nocase; http.host; content:"opportunityconnection.net"; depth:25; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1801640/; target:src_ip; metadata:confidence_level 75, first_seen 2026_04_28; classtype:trojan-activity; sid:91801640; rev:1;)