alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3904048)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/assets/krypton-free.jar"; depth:24; endswith; nocase; http.host; content:"www.krypton-client.net"; depth:22; isdataat:!1,relative; metadata:created_at 2026_08_15; reference:url, urlhaus.abuse.ch/url/3904048/; classtype:trojan-activity; sid:84767148; rev:1;)