alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"URLhaus Known malware download URL detected (3858058)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/feishu-win32_%c3%9764-7.67.5-signed.zip"; depth:40; endswith; nocase; http.host; content:"rrrttt023.tos-cn-beijing.volces.com"; depth:35; isdataat:!1,relative; metadata:created_at 2026_06_03; reference:url, urlhaus.abuse.ch/url/3858058/; classtype:trojan-activity; sid:84721158; rev:1;)