alert tcp [104.167.241.4,104.167.242.117,104.192.3.74,104.219.236.100,104.223.84.121,104.223.84.84,104.244.72.115,104.244.72.132,104.244.73.136,104.244.73.190] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 2"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520001; rev:6363; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_08_31;)