alert ip [203.188.171.0/24,203.189.234.0/23,203.191.64.0/18,203.195.0.0/18,203.202.232.0/24,204.14.80.0/22,204.19.38.0/23,204.27.155.0/24,204.27.202.0/24,204.27.218.0/24,204.29.212.0/24,204.29.220.0/22,204.29.224.0/24,204.44.32.0/20,204.44.208.0/20,204.44.224.0/20,204.52.184.0/24,204.52.255.0/24,204.56.16.0/20,204.58.188.0/22] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 59"; 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:2400058; 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;)