alert tcp [23.191.200.68,23.191.200.69,23.191.200.7,23.191.200.70,23.191.200.71,23.191.200.72,23.191.200.73,23.191.200.74,23.191.200.75,23.191.200.76] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 108"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520107; rev:6360; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_08_28;)