alert ip [185.169.4.0/24,185.177.239.0/24,185.189.73.0/24,185.192.36.0/22,185.212.240.0/22,185.215.132.0/22,185.215.247.0/24,185.218.16.0/24,185.230.14.0/24,185.232.45.0/24,185.237.104.0/24,185.238.176.0/22,185.239.44.0/22,185.239.84.0/22,185.241.208.0/24,185.241.211.0/24,185.242.3.0/24,185.242.246.0/24,185.244.249.0/24,185.255.20.0/22] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 39"; 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:2400038; 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;)