alert dns $HOME_NET any -> any any (msg:"ET MALWARE TransparentTribe CnC Domain in DNS Lookup"; dns.query; content:"swissaccount.ddns.net"; nocase; bsize:21; reference:url,twitter.com/0xrb/status/1501061897604730881; classtype:domain-c2; sid:2035410; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_03_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_08;)