alert dns any any -> $HOME_NET any (msg:"ET MALWARE Vobus/Beebone Sinkhole DNS Reply"; content:"|00 01 00 01|"; content:"|00 04 2E F4 15 04|"; distance:4; within:6; reference:url,trendmicro.com/vinfo/us/threat-encyclopedia/web-attack/151/operation-source-botnet-takedown-trend-micro-solutions; classtype:trojan-activity; sid:2020889; rev:3; metadata:created_at 2015_04_11, deprecation_reason Relevance, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_28, reviewed_at 2024_03_28;)