alert ip [205.196.72.0/22,205.196.76.0/24,205.196.96.0/23,205.196.99.0/24,205.196.100.0/22,205.196.104.0/21,205.196.112.0/22,205.196.116.0/24,205.196.164.0/24,205.196.165.0/24,205.196.192.0/21,205.196.200.0/24,205.203.0.0/19,205.203.224.0/19,205.207.75.0/24,205.207.134.0/24,205.210.29.0/24,205.210.107.0/24,205.210.139.0/24,205.210.171.0/24] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 59"; 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:2400058; rev:4719; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag Dshield, signature_severity Minor, created_at 2010_12_30, updated_at 2026_05_26;)