alert tcp [185.220.101.154,185.220.101.155,185.220.101.156,185.220.101.157,185.220.101.158,185.220.101.159,185.220.101.16,185.220.101.160,185.220.101.161,185.220.101.162] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 37"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520036; 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;)