alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3909739)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/bins/kworkerd-writeback"; depth:24; endswith; nocase; http.host; content:"91.208.197.218"; depth:14; isdataat:!1,relative; metadata:created_at 2026_08_29; reference:url, urlhaus.abuse.ch/url/3909739/; classtype:trojan-activity; sid:84772839; rev:1;)