4625 with Different Account Identifiers Expand / Collapse
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Posted 6/7/2011 10:50:57 AM
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Any idea what this means? I'm seeing 4625 errors on some of our 2008R2 servers where the Subject account is one of our administrators and the Account For Which Logon Failed is the disabled Guest account. Most of the erros reference C:\Windows\explorer.exe but some reference the mmc.exe or printgui.exe. And the errors appear to be a recurring series; not a lot but ten or twelve every day, and generally , but not always, in the afternoon hours.

Thanks,

Ralph

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An account failed to log on.

Subject:

Security ID:  XXXXXX\admin-zzzzzzzzz

Account Name: admin-zzzzzzzz

Account Domain:  XXXXXX

Logon ID: 0x6dff9927

Logon Type: 3

Account For Which Logon Failed:

Security ID: NULL SID

Account Name: Guest

Account Domain:  YYYYY_FP

Failure Information:

Failure Reason: Account currently disabled.

Status: 0xc000006e

Sub Status: 0xc0000072

Process Information:

Caller Process ID: 0xce4

Caller Process Name: C:\Windows\explorer.exe

Network Information:

Workstation Name: YYYYY_FP

Source Network Address: -

Source Port: -

Detailed Authentication Information:

Logon Process: Advapi 

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.

Post #707
Posted 6/7/2011 11:18:11 AM
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Nice, complete information - thanks. So here is what happens.  When you try to access a resource, Windows tries your current logon credentials.  If that fails it automatically tries to just log you on as Guest with no password.  That's what appears to be causing this in this case.
Post #708
Posted 6/7/2011 12:45:59 PM
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Thank you. Explanation fits perfectly. We saw errors yesterday afternoon and I was able to confirm that one of the admins had fat-fngered his password around the time of the log errors.

Ralph

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