Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DOS User-Agent used in known DDoS Attacks Detected outbound"; flow:established,to_server; http.user_agent; content:"Mozilla/5.0 (Windows|3b 20|U|3b 20|Windows NT 5.1|3b 20|ru|3b 20|rv|3a|1.8.1.1) Gecko/20061204 Firefox/2.0.0.1"; reference:url,www.linuxquestions.org/questions/linux-security-4/massive-ddos-need-advice-help-795298/; classtype:denial-of-service; sid:2011821; rev:4; metadata:created_at 2010_10_18, confidence High, signature_severity Major, updated_at 2020_05_06;)