alert tcp [66.146.193.33,66.220.242.222,66.78.40.35,66.78.40.91,67.215.234.141,67.215.236.114,67.215.237.232,69.12.83.15,69.12.83.3,69.12.83.6] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 128"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520127; rev:6317; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_07_16;)