alert tcp [204.8.96.163,204.8.96.164,204.8.96.165,204.8.96.166,204.8.96.167,204.8.96.168,204.8.96.169,204.8.96.170,204.8.96.171,204.8.96.172] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 76"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520075; rev:6317; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_07_16;)