alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - 🚨 APT package management 🐧 Debian"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; http.host.raw; content:"deb.debian.org"; http.user_agent; content:"APT-HTTP|2F|"; nocase; reference:url,https://www.debian.org/; metadata:created_at 2022_03_20, updated_at 2022_06_11; sid:3300045; rev:4; classtype:policy-violation;)