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:"/msi_180922.png"; depth:15; nocase; http.host; content:"chinasite.com.br"; depth:16; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1776542/; target:src_ip; metadata:confidence_level 75, first_seen 2026_03_26; classtype:trojan-activity; sid:91776542; rev:1;)