alert tcp [149.56.44.47,150.40.117.43,150.40.126.168,150.40.126.172,151.242.242.45,152.53.150.12,152.53.210.165,152.53.32.167,152.89.39.187,154.26.159.157] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 16"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520015; 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;)