alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3907571)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/i"; depth:2; endswith; nocase; http.host; content:"221.15.11.81"; depth:12; isdataat:!1,relative; metadata:created_at 2026_08_24; reference:url, urlhaus.abuse.ch/url/3907571/; classtype:trojan-activity; sid:84770671; rev:1;)