alert tcp [150.40.127.237,150.40.127.65,151.242.242.45,151.242.30.113,152.42.210.90,152.53.150.12,152.53.157.69,152.53.170.213,152.53.210.165,152.53.32.167] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 18"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520017; 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;)