alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox payload delivery (url - confidence level: 100%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/book/windows/invite.php"; depth:24; nocase; http.host; content:"updatcloud.us"; depth:13; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1794493/; target:src_ip; metadata:confidence_level 100, first_seen 2026_04_19; classtype:trojan-activity; sid:91794493; rev:1;)