alert ip [194.180.64.0/20,195.24.237.0/24,195.96.32.0/19,195.133.16.0/24,195.177.92.0/24,195.178.110.0/24,195.178.148.0/23,195.181.224.0/20,196.10.61.0/24,196.10.62.0/23,196.10.64.0/19,196.15.64.0/18,196.16.0.0/14,196.49.11.0/24,196.216.1.0/24,196.223.43.0/24,196.251.66.0/23,196.251.69.0/24,196.251.80.0/23,196.251.85.0/24] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 46"; 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:2400045; rev:4813; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag Dshield, signature_severity Minor, created_at 2010_12_30, updated_at 2026_08_28;)