alert tcp [90.184.10.74,91.132.144.59,91.203.144.194,91.203.145.116,91.206.26.26,91.208.75.153,91.208.75.156,91.208.75.178,91.208.75.239,91.208.75.3] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 138"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520137; rev:6360; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_08_28;)