alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Unsupported/Fake FireFox Version 0."; flow:established,to_server; threshold:type limit,track by_src,count 2,seconds 60; http.user_agent; content:" Firefox/0."; nocase; classtype:policy-violation; sid:2016875; rev:6; metadata:created_at 2013_05_21, confidence High, signature_severity Informational, updated_at 2024_03_06;)