alert ip [161.60.0.0/16,161.248.6.0/23,161.248.178.0/23,162.71.0.0/19,162.217.160.0/21,162.246.184.0/22,162.249.20.0/22,163.5.102.0/24,163.47.19.0/24,163.50.0.0/16,163.61.188.0/23,163.61.216.0/24,163.198.0.0/16,163.250.0.0/16,163.254.0.0/16,164.6.0.0/16,164.79.0.0/16,164.88.0.0/16,164.155.0.0/16,164.215.103.0/24] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 35"; reference:url,www.spamhaus.org/drop/drop.txt; threshold:type limit, track by_src, seconds 3600, count 1; classtype:misc-attack; flowbits:set,ET.Evil; flowbits:set,ET.DROPIP; sid:2400034; rev:4888; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag Dshield, signature_severity Minor, created_at 2010_12_30, updated_at 2026_11_11;)