alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - ℹ ClamAV 😈 Antivirus 🛡"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; tls_sni; content:"database.clamav.net"; nocase; ja3.hash; content:"f436b9416f37d134cadd04886327d3e8"; reference:url,https://www.clamav.net/; metadata:created_at 2022_02_13, updated_at 2022_06_13; sid:3300750; rev:3; classtype:misc-activity;)