alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - 🚨 APT package management 🐧 Kali Linux"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; http.host.raw; content:"kali.org"; http.user_agent; content:"APT-HTTP|2F|"; fast_pattern; nocase; reference:url,https://kali.org/; metadata:created_at 2021_05_08, updated_at 2023_07_25; sid:3300040; rev:11; classtype:policy-violation;)