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:"/l15.exe"; depth:8; nocase; http.host; content:"178.16.54.109"; depth:13; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1691635/; target:src_ip; metadata:confidence_level 100, first_seen 2026_01_05; classtype:trojan-activity; sid:91691635; rev:1;)