alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"🐾 - 🚨 iOS 🍏 15 vulnerable if version < 15.7.9"; flow:to_server, stateless; threshold:type limit, track by_src,count 1, seconds 86400; http.user_agent; content:"itunesstored/"; nocase; startswith; fast_pattern; content:"iOS/15"; nocase; content:!"iOS/15.7.9"; nocase; metadata:created_at 2022_09_25, updated_at 2023_09_13; sid:3300048; rev:11; classtype:policy-violation;)