alert http $HOME_NET any -> any any (msg:"AT related malicious URL (223900.vip/index.html)"; flow:established,to_server; http.uri; content:"/index.html"; startswith; fast_pattern; http.host; content:"223900.vip"; endswith; reference:url,openphish.com; reference:url,julioliraup.github.io/ET/signature.html?sid=6006798; classtype:social-engineering; sid:6006798; rev:1; metadata:signature_severity Major, created_et 2026_05_25;)