alert dns $HOME_NET any -> any any (msg:"ET INFO Ethereum RPC Endpoint Domain in DNS Lookup (eth .merkle .io)"; dns.query; bsize:13; content:"eth.merkle.io"; nocase; reference:url,unit42.paloaltonetworks.com/kimwolf-v7-botnet-malware/; classtype:misc-activity; sid:2071461; rev:1; metadata:affected_product Any, attack_target Client_and_Server, created_at 2026_08_11, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2026_08_11, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1205, mitre_technique_name Traffic_Signaling;)