Versions (3)
Version DetailsCurrent
Rev: 12 • Jul 30, 2010, 12:00 PMET USER_AGENTS KKtone Suspicious User-Agent (KKTone)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS KKtone Suspicious User-Agent (KKTone)"; flow:to_server,established; threshold:type limit, count 2, track by_src, seconds 300; http.user_agent; content:"KKTone"; nocase; depth:6; classtype:trojan-activity; sid:2004443; rev:12; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2020_10_16;)
Jul 30, 2010, 12:00 PM
Oct 16, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-user_agents.rules