alert http $HOME_NET any -> any any (msg:"AT related malicious URL (nassabi.grv5718513.pro/)"; flow:established,to_server; http.uri; content:"/"; startswith; fast_pattern; http.host; content:"nassabi.grv5718513.pro"; endswith; reference:url,phishstats.info; reference:url,julioliraup.github.io/AT/signature.html?sid=6005320; classtype:social-engineering; sid:6005320; rev:1; metadata:signature_severity Major, created_et 2026_05_22, updated_et 2026_06_25;)