alert ip [45.135.194.0/24,45.136.5.0/24,45.137.201.0/24,45.138.12.0/24,45.138.16.0/24,45.139.104.0/24,45.141.12.0/22,45.141.56.0/24,45.141.58.0/23,45.141.84.0/22,45.141.148.0/24,45.141.215.0/24,45.142.152.0/22,45.142.155.0/24,45.142.193.0/24,45.144.212.0/24,45.144.212.0/22,45.148.10.0/24,45.150.34.0/24,45.150.212.0/22] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 8"; 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:2400007; 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;)