Event Details
Operating System->Microsoft Windows->Built-in logs->Windows 2008 or higher->Security Log->Account Logon->Credential Validation->EventID 4776 - The computer attempted to validate the credentials for an account.
EventID 4776 - The computer attempted to validate the credentials for an account.
This event is generated when a logon request fails. It is generated on the computer where access was attempted.

Note:
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.

Find more information about this event on ultimatewindowssecurity.com.

Corresponding events on other OS versions:
Windows 2000 

Windows 2003
 Sample: 
The computer attempted to validate the credentials for an account.

Authentication Package:	%1
Logon Account:	%2
Source Workstation:	%3
Error Code:	%4
Log Type: Windows Event Log
 Uniquely Identified By:
Log Name: Security
Filtering Field Equals to Value
OSVersion Windows Vista (2008)
Windows 7 (2008 R2)
Windows 8 (2012)
Windows 8.1 (2012 R2)
Windows 10 (2016)
Category Account Logon
Source Microsoft-Windows-Security-Auditing
TaskCategory Credential Validation
EventId 4776
Field Matching
FieldDescriptionStored inSample Value
DateTime Date/Time of event origination in GMT format. DateTime 10.10.2000 19:00:00
Source Name of an Application or System Service originating the event. Source Security
Type Warning, Information, Error, Success, Failure, etc. Type Success
User Domain\Account name of user/service/computer initiating event. User RESEARCH\Alebovsky
Computer Name of server workstation where event was logged. Computer DC1
EventID Numerical ID of event. Unique within one Event Source. EventId 576
Description The entire unparsed event message. Description Special privileges assigned to new logon.
Log Name The name of the event log (e.g. Application, Security, System, etc.) LogName Security
Task Category A name for a subclass of events within the same Event Source. TaskCategory
Level Warning, Information, Error, etc. Level
Keywords Audit Success, Audit Failure, Classic, Connection etc. Keywords
Category A name for an aggergative event class, corresponding to the similar ones present in Windows 2003 version. Category Account Logon
Object Name -
Whom -
Object Type -
Class Name -
Security ID -
Account Name -
Account Domain -
Authentication Package The name of the Authentication package that processes the authentication request InsertionString1
Logon Account The name of the account that initiated the authentication attempt InsertionString2
Source Workstation The name of the workstation that authentication attempt was initiated from InsertionString3
Error Code The code for the failure reason InsertionString4
Comments
You must be logged in to comment