alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3840741)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/arc"; depth:4; endswith; nocase; http.host; content:"87.121.84.23"; depth:12; isdataat:!1,relative; metadata:created_at 2026_05_06; reference:url, urlhaus.abuse.ch/url/3840741/; classtype:trojan-activity; sid:84703841; rev:1;)