alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3888094)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/9957f452-10ee-4604-9013-043730dd6937/pf.ch"; depth:43; endswith; nocase; http.host; content:"nxbv.sabad724.bio"; depth:17; isdataat:!1,relative; metadata:created_at 2026_07_18; reference:url, urlhaus.abuse.ch/url/3888094/; classtype:trojan-activity; sid:84751194; rev:1;)