alert dns $HOME_NET any -> any any (msg:"ET MALWARE ELF.SystemdMiner C2 Domain in DNS Lookup"; dns.query; content:"rapid7cpfqnwxodo"; depth:16; reference:url,blog.netlab.360.com/systemdminer-when-a-botnet-borrows-another-botnets-infrastructure/; classtype:command-and-control; sid:2027352; rev:4; metadata:affected_product Linux, attack_target Server, created_at 2019_05_13, deployment Datacenter, malware_family CoinMiner, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_18;)