alert dns $HOME_NET any -> any any (msg:"ET MALWARE IoT_reaper DNS Lookup M5 (bbk80 .com)"; dns.query; content:"bbk80.com"; fast_pattern; nocase; endswith; reference:url,research.checkpoint.com/iotroop-botnet-full-investigation/; classtype:trojan-activity; sid:2024934; rev:8; metadata:attack_target IoT, created_at 2017_10_31, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_16, reviewed_at 2024_09_16;)