alert http $HOME_NET any -> any any (msg:"AT related malicious URL (www.16099.xyz/)"; flow:established,to_server; http.uri; content:"/"; startswith; fast_pattern; http.host; content:"www.16099.xyz"; endswith; reference:url,openphish.com; reference:url,julioliraup.github.io/ET/signature.html?sid=6006932; classtype:social-engineering; sid:6006932; rev:1; metadata:signature_severity Major, created_et 2026_05_25;)