alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3851844)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/chk"; depth:4; endswith; nocase; http.host; content:"snow-harbor.christmas"; depth:21; isdataat:!1,relative; metadata:created_at 2026_05_22; reference:url, urlhaus.abuse.ch/url/3851844/; classtype:trojan-activity; sid:84714944; rev:1;)