The efsui.exe file is responsible for providing a user interface for the Encrypting File System (EFS) in Windows. EFS is a feature that allows users to encrypt files and folders on their Windows machine.
If you see this process running and are worried, check these three things: A Forensic Analysis of the Encrypting File System
While efsui.exe doesn't have an installdra command, you can manually add recovery agents after encryption:
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