How To Decrypt many files in AD RMS When You Do Not Have Access to Them

Active Directory Right Management Service (AD RMS) is a security tool that you can deploy to your users that allow them to determine what kind of access users or groups have to the content that a user generates. A very good question from class is how do you decrypt the data if you need to get access to it when you were not given AD RMS rights. The answer is with the AD RMS Bulk Protection Tool. You can download it from here (http://www.microsoft.com/downloads/details.aspx?FamilyID=F9FBE58F-C175-41D0-AFDC-6F160AB809CD&displaylang=ru&displaylang=en)

Once you download the .msi file, double click it to allow it to install.

Click Next

Check I accept the terms in the License Agreement and click Next.

Click Next

Click Install

Click Finish when the installation completes.

To start using the AD RMS Bulk Protection Tool:

Click Start / All Programs / AD RMS Bulk Protection Tool / AD RMS Bulk Protection Tool

A special command prompt windows will open. Give it a few seconds to finish loading. We need to know the location where the files are that need to be decrypted. The syntax for this operation is:

RMSBulk.exe /decrypt \\ServerName\ShareName

Be aware that I was able to decrypt documents using a standard user account that did not have any AD RMS access rights on the documents to begin with. This is a very powerful tool.

One more note, This has to be ran on a Windows Vista, Windows 7, or Windows Serer 2008 R2 machine.

Comments

How to list all the AD LDS instances on a server

AD LDS allows you to provide directory services to applications that are free of the confines of Active Directory. To list all the AD LDS instances on a server, follow this procedure: Log into the server in question Open a command prompt. Type dsdbutil and press Enter Type List Instances and press Enter . You will receive a list of the instance name, both the LDAP and SSL port numbers, the location of the database, and its status.

How to run GPResult on a remote client with PowerShell

In the past, to run the GPResult command, you would need to either physically visit this client, have the user do it, or use and RDP connection. In all cases, this will disrupt the user. First, you need PowerShell remoting enabled on the target machine. You can do this via Group Policy . Open PowerShell and type this command. Invoke-Command –ScriptBlock {GPResult /r} –ComputerName <ComputerName> Replace <ComputerName> with the name of the target. Remember, the target needs to be online and accessible to you.

Error icon when creating a GPO Preference drive map

You may not have an error at all. Take a look at the drive mapping below. The red triangle is what threw us off. It is not an error. It is simply a color representation of the Replace option of the Action field in the properties of the drive mappings. Create action This give you a green triangle. The Create action creates a new mapped drive for users. Replace Action The Replace action gives you a red triangle. This action will delete and recreate mapped drives for users. The net result of the Replace action is to overwrite all existing settings associated with the mapped drive. If the drive mapping does not exist, then the Replace action creates a new drive mapping. Update Action The Update action will have a yellow triangle. Update will modify settings of an existing mapped drive for users. This action differs from Replace in that it only updates settings defined within the preference item. All other settings remain as configured on the mapped drive. If the

Jason Yoder, MCT

Search This Blog