alert tcp [77.90.185.93,78.141.219.102,78.41.207.197,79.100.237.181,79.141.175.76,80.241.60.207,80.67.167.81,80.67.172.162,80.94.92.92,80.94.92.99] any -> $HOME_NET any (msg:"ET TOR Known Tor Exit Node Traffic group 131"; reference:url,check.torproject.org/torbulkexitlist; threshold:type limit, track by_src, seconds 60, count 1; classtype:misc-attack; flowbits:set,ET.TorIP; sid:2520130; rev:6364; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag TOR, signature_severity Informational, created_at 2008_12_01, updated_at 2026_09_01;)