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:"10f1ebcdc5bf282bdf4aec39fb4cfc8b"; reference:url,https://zoom.us/; metadata:created_at 2022_03_10, updated_at 2022_06_15; sid:3300792; rev:5; classtype:misc-activity;)