alert ip [89.32.43.0/24,89.32.170.0/24,89.32.202.0/24,89.33.46.0/23,89.33.134.0/24,89.33.206.0/24,89.33.250.0/23,89.33.254.0/23,89.34.0.0/24,89.34.4.0/24,89.34.102.0/24,89.34.104.0/23,89.35.89.0/24,89.35.90.0/24,89.36.136.0/24,89.36.141.0/24,89.37.96.0/24,89.37.136.0/24,89.38.240.0/24,89.39.69.0/24] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 14"; 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:2400013; 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;)