alert tcp [104.219.236.100,104.244.72.132,104.244.73.136,104.244.73.14,104.244.73.190,104.244.73.193,104.244.73.43,104.244.74.51,104.244.74.97,104.244.75.140] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 3"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520002; 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;)