alert tcp [23.191.200.93,23.191.200.94,23.191.200.95,23.191.200.96,23.191.200.97,23.191.200.98,23.191.200.99,2.56.10.36,31.133.0.122,31.133.0.204] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 100"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520099; rev:6435; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_11_11;)