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YoojongJeon's avatar
YoojongJeon
Copper Contributor
Dec 01, 2023

"username and password incorrect" error in the session host deployed with AVD Entra ID Joined

I found an error in the session host deployed with AVD with Entra ID joined recently.   When a user tries to connect to the session host for the first time using Remote Desktop Client or Webclient,...
YoojongJeon's avatar
YoojongJeon
Copper Contributor
Dec 05, 2023

samy_vanderspikken 

 

this is recorded in the security log

I searched about this, but couldn't find anything that helped solve the problem

---------------------------------------------------------------------------------------------------

An account failed to log on.
 
Subject:
Security ID: SYSTEM
Account Name: test-sh-0$
Account Domain: WORKGROUP
Logon ID: 0x3E7
 
Logon Type: 10
 
Account For Which Logon Failed:
Security ID: NULL SID
Account Name: -
Account Domain: -
 
Failure Information:
Failure Reason: An Error occured during Logon.
Status: 0xC000006D
Sub Status: 0xC000023C
 
Process Information:
Caller Process ID: 0x744
Caller Process Name: C:\Windows\System32\svchost.exe
 
Network Information:
Workstation Name: -
Source Network Address: 0.0.0.0
Source Port: 0
 
Detailed Authentication Information:
Logon Process: User32 
Authentication Package: Negotiate
Transited Services: -
Package Name (NTLM only): -
Key Length: 0
 
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
 
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
 
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
 
The Process Information fields indicate which account and process on the system requested the logon.
 
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
 
The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
samy_vanderspikken's avatar
samy_vanderspikken
Brass Contributor
Dec 05, 2023

YoojongJeon 

 

The event is triggered because of either a bad username or authentication information. Likely it would be invalid authentication information, but not in the case if it works after the second try. 

 

There is another way to extract logs or even to fix the issue:

  1. Login to  Windows app remote web client (local login is not possible)
    1. Link -> https://windows.cloud.microsoft/
  2. Connect to the AVD and authenticate
  3. If the authentication fails, then you can extract a txt file from the extract logs option beneath the authentication failure pop-up

 

Reference:

https://learn.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4625#:~:text=0XC000006D%20%E2%80%93%20%22This%20is%20either%20due%20to%20a%20bad%20username%20or%20authentication%20information%22%20for%20critical%20accounts%20or%20service%20accounts.%0AEspecially%20watch%20for%20a%20number%20of%20such%20events%20in%20a%20row.

 

 

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