Please help to identify the following description belonging to which technique in MITRE and the corresponding tactics: Ryuk has been observed to query the registry key <code>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Language</code> and the value <code>InstallLanguage</code>. If the machine has the value 0x419 (Russian), 0x422 (Ukrainian), or 0x423 (Belarusian), it stops execution.