Windows 10: Are we making progress on the issue with Windows Credentials?

Moose WorldWide · Dec 17, 2020

Since the last few updates I've become increasingly annoyed at my Windows 10 machine...

After a reboot network drives don't connect. I reconnect, asks for my password, save password means nothing, deleting the windows credential doesn't help.

Outlook asks for my password every time it starts, every time I send an email, everytime I add an attachment to an email, and periodically all day. Delete my outlook profile and recreate, delete the windows credential, does nothing. Remember password, does nothing.

SQL Server management studio asks for my password every time I open a file. A solution with 20 SQL scripts, enter your password 20 times. Can't find a Windows credential to delete.

3rd party vpn apps that used to remember their passwords no longer remember.

I'm all for security but this is beyond annoying. It got slightly better after the last update - Outlook was asking me for my password everytime I opened an email! but none of the other issues are addressed.

It's not just me, all the Windows users in my organization report similar frustrations.

Maybe we could ask Apple for the code to Keychain?

:)

Ryan Fra · Dec 17, 2020

Windows Network Credentials

Hi Keith,

We suggest that you disable Credential Manager before mapping your Drives. Please follow these steps to disable Credential Manager:

In the search box type “Services”

Right click on “Services” and select “Run as Administrator”

In the Services Window, look for Credential Manager Service and click “Stop”.

Restart the computer and go back the Credential Manager Service and set it to “Automatic”.

Restart the computer again.

Please keep us updated if you were able to map your drives.

Brink · Dec 17, 2020

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

Nyima Yonten · Dec 17, 2020

Windows 10 Stored Passwords (Credential Mgr) Deleted

Hi,

I realize the inconvenience you are experiencing with Windows 10. I will certainly help you.

This issue might occur if there is browser settings.

To assist you better, please provided us the information below:

Which browser are you using on the computer?

Are you using Internet Explorer on the computer?

Have you created any system restore points on the computer prior to the issue?

I suggest you to follow the steps below to check if web credentials is store in the Web credential window.

1. Click on Search bar.

2. Type "Manager Web Credentials." without the quotes in the search bar and click on it.

3. Then check if you fin the web credentials are present in it or not.

Please get back to us with an update on issue with finding the web credential on Windows 10, we will be happy to help.

Thank you.

Windows 10: Are we making progress on the issue with Windows Credentials?

Are we making progress on the issue with Windows Credentials?

Are we making progress on the issue with Windows Credentials?

Are we making progress on the issue with Windows Credentials?

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