alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3465850)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/blobby/go/600b6853-9b14-40c4-b9d1-c0a10f9ad1eb/downloads/mathematics_core_topics_sl.pdf"; depth:88; endswith; nocase; http.host; content:"img1.wsimg.com"; depth:14; isdataat:!1,relative; metadata:created_at 2025_03_05; reference:url, urlhaus.abuse.ch/url/3465850/; classtype:trojan-activity; sid:84328950; rev:1;)