alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3842028)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/c84da/bl.txt"; depth:13; endswith; nocase; http.host; content:"catalogo.castrouria.com"; depth:23; isdataat:!1,relative; metadata:created_at 2026_05_08; reference:url, urlhaus.abuse.ch/url/3842028/; classtype:trojan-activity; sid:84705128; rev:1;)