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File is decrypted (but padlock remains) when copied from a shared resource drive to another client
Technical Articles ID:   KB69849
Last Modified:  5/28/2019

Environment

McAfee Endpoint Encryption for Files and Folders (EEFF) 4.2.x
McAfee File and Removable Media (FRP) 5.x, 4.3.x

Microsoft Windows 7
Microsoft Remote Desktop Protocol (RDP)

Problem

Encrypted files copied to another computer via RDP become decrypted.

If you access an FRP or EEFF client, installed via Microsoft Remote Desktop, from another FRP or EEFF client with all drives shared, and then copy an encrypted file from the shared drive to the other FRP or EEFF client, the file is decrypted but the file retains the FRP or EEFF encryption padlock icon.

Solution

This issue has been deferred to be resolved in a future product release. This article will be updated when newer information is available.

As a temporary measure, implement the workaround shown below.

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Workaround

To work around this problem, use the FRP/EEFF Blocked Processes option in the Encryption Options policy.

Extracted from the FRP Product Guide (PD26185)
Blocked Processes
Blocks the specified processes from opening encrypted files. FRP blocks a process by withholding the keys required to decrypt the files.
 
By listing the application process name as Blocked in the EEFF or FRP policy, files will not be decrypted for these applications when called upon. Instead, the files are given in an encrypted state.
  1. Log in to ePO console and edit the FRP policy settings.
  2. Click Menu, Policy, Policy Catalog, then select File and Removable Media Protection from the Product drop-down list.
  3. Select the category from the drop-down list. All created policies for the selected category appear in the details pane.
  4. Under Blocked Processes, add the following process to block: rdpclip.exe
  5. Under Blocked Processes, also add the following process to block: mstsc.exe.
  6. Save the policy.
  7. Send an Agent Wake-up call.

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