alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3877580)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/|3f|ublib=ac8f87a6-f517-4bf1-95ae-c31b080c5189"; depth:47; endswith; nocase; http.host; content:"bf4nlm15.1xboropartners.com"; depth:27; isdataat:!1,relative; metadata:created_at 2026_06_28; reference:url, urlhaus.abuse.ch/url/3877580/; classtype:trojan-activity; sid:84740680; rev:1;)