alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3897984)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/donwnload/prortonvpn_x64.zip"; depth:29; endswith; nocase; http.host; content:"download.tfyxzai.com"; depth:20; isdataat:!1,relative; metadata:created_at 2026_08_06; reference:url, urlhaus.abuse.ch/url/3897984/; classtype:trojan-activity; sid:84761084; rev:1;)