Windows 10: Remote User Credentials

NeilHumphreys1 · May 6, 2022

I have looked everywhere for this answer and cannot find it. Youtube, internet etc.Here goes.I have three PC's. Lets call them Laptop, Basement and Den. Laptop and Den are windows 11 and Basement windows 10I log into all three PC's via my Hotmail email. Also via four digits pinsI want to be able to remote get into the files on each PC from all the other PC's. So I turned on file sharing, shared the drives etc etc. I can see the other PC. Click on it and says enter network credentials of remote PC. I tried my Hotmail ones and it did not work so what username and password do i use or how do set

:)

NathanT_06 · May 6, 2022

Remotely logoff users command with credentials

Hi areebyounus,

It's hard to tell why it's not accepting your credentials, however I can suggest an alternate solution.

Download PSTools from the following website:
https://docs.microsoft.com/en-us/sysinternals/d...

Unzip the files to a new folder located C:\PSTools

Then do the following:

- Open Command Prompt as administrator

- Enter: cd C:\PSTools

- Enter: psexec.exe \\<ENTER SERVER NAME HERE> cmd

- You will then be prompted for admin credentials

Once you have entered the correct credentials (remember to use DOMAIN\USERNAME, or SERVERNAME\LOCAL_USERNAME) you will have a Command Prompt session running from that particular server. You can then do the below steps to remotely log off a user:

- Enter: query session

- Note down the session ID of the user you wish to log off

- Enter: logoff # (where # is the ID number of the user above)

Hope this helps,

Nathan

Brink · May 6, 2022

Credential Guard lab companion

If you have heard about Credential Guard in Windows Server 2016 (and in Windows 10), but do not have an environment to try it out, here is a lab environment we built for you to play.

Lab access

The link will lead you to a sign up page, after that, you will see the following labs listed for Windows Server 2016:

Windows Server 2016 labs

There are 3 exercises in the “Implementing Breach Resistance Security in Windows Server 2016”:

Credential Guard

Remote Credential Guard

Device Guard

This blogpost will walk you through the Credential Guard lab details.

After click on the link of Breach Resistance lab, you be required to sign in and then you can launch the lab:

Sign-in

Launch page

It takes a few minutes to create the VMs, and once it has done, you will see the following machines prepared:

Initialize

DC: domain controller, which is not used for this exercise.

SRV01 and SRV02: both are Windows Server 2016, and used for the lab exercise.

Lab exercise – Explained

The steps are listed in the Content section:

Content

This lab is structured to cover the following in sequence:

Understand how attackers can use the hash in memory to gain access to domain controllers

Configure Credential Guard

Verify the hash in memory is protected using Credential Guard

You can follow the steps listed under the content section to complete the lab, the intent of the blog, is to break the procedures into groups, to help you understand the exercise better.

Prep the hash

Lsass.exe is the process which handles user logon, it stores the user credential information in its memory. The memory is cleared when the machine starts up. In this lab environment, all the virtual machines start at the time lab launches, when you logon to the machine, you will only have the logon user credential information in memory. In order to demonstrate an attacker gaining user access using other account’s hash, the first part of the lab is to simulate a server which has been running for a while, different users had remotely or locally connected to it, therefore, lsass memory stored many different user credential information.
This is accomplished by step 1-8.

Retrieving credential hash

Mimikatz is a popular tool for retrieving lsass memory information. The tool has been copied to the lab machines, step 9-13 walk you through the process of dumping lsass memory using Mimikatz.

Pass the Hash

Pass the hash is a hacking technique that allows an attacker to authenticate by using the underlying NTLM, instead of specifying the user password. In step 14 to 24, you will extract LabAdmin hash from lsass using Mimikatz, and use the hash to open a PowerShell console, and perform a couple of operations using the LabAdmin privilege:

Add a user to the domain admin group

Open remote PowerShell connection to a domain controller

Both operations could not be performed by the logon user. But using the hash of the LabAdmin, an attacker will be able to do it using the information retrieve from Lsass memory.

Configure and verify Credential Guard

Step 25 to 36 illustrate the steps to configure credential guard, then verify its status using msinfo32.exe and PowerShell.

Step 37 to 43 goes further to use Mimikatz to show the hash in Lsass is now encrypted using Credential Guard.

More info

The exercise illustrated the benefit of Credential Guard in Windows Server 2016 as well as Windows 10. For more information, you can find here.
Click to expand...

Source: Credential Guard lab companion Datacenter and Private Cloud Security Blog

See also:

Enable or Disable Credential Guard in Windows 10 Windows 10 Security System Tutorials

Verify if Credential Guard is Enabled or Disabled in Windows 10 Windows 10 Security System Tutorials

Junaid_A · May 6, 2022

Remote Desktop won't accept login credentials

Hi Robert,

Thank you for writing to Microsoft Community forum.

Are you using a Microsoft account to login?

Was the user name changed at any point of time?

Meanwhile, you may try the steps listed below and check if it works:

Open Command prompt as an administrator on your local machine and type:
gpedit.msc

Navigate to the following location:

Local Computer Policy\Computer Configuration\Administrative Templates\System\Credentials Delegation

Click on ‘Allow Delegating Saved Credentials with NTLM-only Server Authentication’

Enable the policy and click on ‘Show’ button in the options window below and enter the value
‘TERMSRV/*’ (without quotes) into the list. Apply the changes.

Do the same thing for the following policies:

Allow Delegating Saved Credentials

Allow Delegating Default Credentials with NTLM-only Server Authentication

Allow Delegating Default Credentials

Make sure that ‘Deny Delegating Saved Credentials’ is not enabled or does not contain ‘TERMSRV/*’ in the list

Close all windows, open a command prompt, and use
‘gpupdate /force’ command to apply the policy directly.

Once the update is complete, reboot the machine and see if you can remote login.

Regards,

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