alert tcp [5.253.247.27,5.255.101.10,5.255.102.26,5.255.104.202,5.255.105.182,5.255.110.120,5.255.111.52,5.255.115.58,5.255.117.56,5.255.118.218] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 123"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520122; rev:6316; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_07_15;)