alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3891700)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/scl/fi/rtn5r2ig6gqvsv2vasqbx/krypton-1.21.1-v15.jar|3f|rlkey=q48p4pfjgt1ygsmd0moc6ihnv|7c|26|7c|st=qlzqzgsy"; depth:108; endswith; nocase; http.host; content:"dl.dropboxusercontent.com"; depth:25; isdataat:!1,relative; metadata:created_at 2026_07_26; reference:url, urlhaus.abuse.ch/url/3891700/; classtype:trojan-activity; sid:84754800; rev:1;)