alert ip [193.30.241.0/24,193.32.66.0/23,193.32.162.0/24,193.46.255.0/24,193.139.0.0/16,193.142.146.0/23,193.143.1.0/24,193.151.160.0/22,193.169.194.0/23,193.202.82.0/23,193.221.200.0/23,193.226.76.0/24,193.233.200.0/24,193.233.255.0/24,193.239.154.0/23,193.242.153.0/24,193.243.0.0/17,194.0.234.0/24,194.11.246.0/24,194.26.29.0/24] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 44"; 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:2400043; rev:4769; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag Dshield, signature_severity Minor, created_at 2010_12_30, updated_at 2026_07_15;)