alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"🐾 - ℹ McAfee 👾 Antivirus 🛡"; flow:to_client, established; threshold:type limit, track by_dst,count 1, seconds 86400; tls.cert_subject; content:"CN=TrustedSourceServer_IMQA01"; nocase; reference:url,https://community.mcafee.com/t5/Endpoint-Security-ENS/Web-Control-Self-Signed-Certificate/m-p/638810/highlight/true#M5826; metadata:created_at 2021_07_20, updated_at 2022_06_13; sid:3300743; rev:3; classtype:misc-activity;)