alert tcp [23.191.200.36,23.191.200.37,23.191.200.38,23.191.200.39,23.191.200.4,23.191.200.40,23.191.200.41,23.191.200.42,23.191.200.43,23.191.200.44] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 90"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520089; rev:6266; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_05_26;)