alert ip [80.208.192.0/20,80.244.11.0/24,81.28.110.0/24,81.30.98.0/24,81.30.107.0/24,81.94.150.0/24,81.94.159.0/24,82.38.101.0/24,82.38.103.0/24,82.38.104.0/24,82.38.107.0/24,82.38.132.0/24,82.135.156.0/23,82.135.228.0/22,83.97.73.0/24,83.142.209.0/24,83.175.0.0/18,83.217.208.0/24,83.217.209.0/24,83.218.218.0/24] any -> $HOME_NET any (msg:"ET DROP Spamhaus DROP Listed Traffic Inbound group 11"; 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:2400010; rev:4719; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag Dshield, signature_severity Minor, created_at 2010_12_30, updated_at 2026_05_26;)