alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - ℹ Virtualbox 🖥"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; http.host.raw; content:"download.virtualbox.org"; nocase; http.user_agent; content:"CcfDownload/"; nocase; reference:url,https://www.virtualbox.org/; metadata:created_at 2021_08_26, updated_at 2022_06_15; sid:3300781; rev:5; classtype:misc-activity;)