alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - ℹ Zoom 📹 client for Windows"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; tls_sni; content:"zoom.us"; nocase; ja3.hash; content:"a11b4490e00d7eb15e01133674ccc829"; reference:url,https://zoom.us/; metadata:created_at 2022_07_20, updated_at 2022_07_20; sid:3300793; rev:1; classtype:misc-activity;)