alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Gamaredon Domain (ravaet .ru)"; dns.query; dotprefix; content:".ravaet.ru"; nocase; endswith; reference:url,twitter.com/malPileDiver/status/1636041827441688576; classtype:domain-c2; sid:2044650; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_16, deployment Perimeter, deprecation_reason Relevance, malware_family Gamaredon, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_05_10;)