If you need to analyze further:
:
If you see these processes running unexpectedly, you can verify their legitimacy by checking the file location (should be digital signature (should be Microsoft Windows) using the Microsoft Sysinternals Process Explorer or a guide on identifying malicious process behavior efsui.exe - Hybrid Analysis efsuiexe efs installdra exclusive
cipher /u : Updates the EFS user's file encryption key or recovery agent key in all encrypted files on local drives.
EFS is a built-in encryption technology that first appeared in Windows 2000 and was refined for Windows XP Professional and beyond. It is a feature of the NTFS file system and offers , which means you can choose to encrypt individual files or folders on your drive, not the entire drive itself. If you need to analyze further: : If
Right-click the folder and select Create Data Recovery Agent or Add Data Recovery Agent . Import the public EFSDRA.cer file you created in Step 1.
An file (containing the highly sensitive private key used for actual file decryption). Step 2: Deploy the Certificate via Group Policy Right-click the folder and select Create Data Recovery
If an IT department needs to exclusively decrypt a locked asset after an unenrollment or an account deletion, they must move the file to a secure, isolated workspace and leverage the private key.