alert http $HOME_NET any -> any any (msg:"AT related malicious URL (brt.ctsary.buzz/track-it)"; flow:established,to_server; http.uri; content:"/track-it"; startswith; fast_pattern; http.host; content:"brt.ctsary.buzz"; endswith; reference:url,openphish.com; reference:url,julioliraup.github.io/ET/signature.html?sid=6007077; classtype:social-engineering; sid:6007077; rev:1; metadata:signature_severity Major, created_et 2026_05_25;)