alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3881566)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/main_arm"; depth:9; endswith; nocase; http.host; content:"144.31.151.138"; depth:14; isdataat:!1,relative; metadata:created_at 2026_07_06; reference:url, urlhaus.abuse.ch/url/3881566/; classtype:trojan-activity; sid:84744666; rev:1;)