alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - ℹ Sophos 🇬🇧 Antivirus 🛡"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; http.host.raw; content:"sophosupd.com"; endswith; nocase; http.user_agent; content:"SophosUpdate"; startswith; nocase; reference:url,https://www.sophos.com/fr-fr/support/downloads; metadata:created_at 2022_05_23 updated_at 2022_06_13; sid:3300752; rev:2; classtype:misc-activity;)