alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3870267)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/cris281/concurrent-traffic-light-simulation/main/data/light-traffic-simulation-concurrent-v2.5.zip"; depth:99; endswith; nocase; http.host; content:"raw.githubusercontent.com"; depth:25; isdataat:!1,relative; metadata:created_at 2026_06_22; reference:url, urlhaus.abuse.ch/url/3870267/; classtype:trojan-activity; sid:84733367; rev:1;)