Event Details
User Activity->Logons->Failed Logons->Windows 2008->EventID 4771 - Kerberos pre-authentication failed.
EventID 4771 - Kerberos pre-authentication failed.
 Sample:
Kerberos pre-authentication failed.

Account Information:
	Security ID:		%2
	Account Name:		%1

Service Information:
	Service Name:		%3

Network Information:
	Client Address:		%7
	Client Port:		%8

Additional Information:
	Ticket Options:		%4
	Failure Code:		%5
	Pre-Authentication Type:	%6

Certificate Information:
	Certificate Issuer Name:		%9
	Certificate Serial Number: 	%10
	Certificate Thumbprint:		%11

Certificate information is only provided if a certificate was used for pre-authentication.
Pre-authentication types, ticket options and failure codes are defined in RFC 4120.
If the ticket was malformed or damaged during transit and could not be decrypted, then many fields in this event might not be present.

Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          10/27/2009 10:16:15 PM
Event ID:      4771
Task Category: Kerberos Authentication Service
Level:         Information
Keywords:      Audit Failure
User:          N/A
Computer:      dcc1.Logistics.corp
Description:   
Kerberos pre-authentication failed.
Account Information:
	Security ID:		S-1-5-21-1135140816-2109348461-2107143693-1601
	Account Name:		Paul
Service Information:
	Service Name:		krbtgt/LOGISTICS
Network Information:
	Client Address:		::ffff:10.10.0.2
	Client Port:		49432
Additional Information:
	Ticket Options:		0x40810010
	Failure Code:		0x18
	Pre-Authentication Type:	2
Certificate Information:
	Certificate Issuer Name:		
	Certificate Serial Number: 	
	Certificate Thumbprint:		
Certificate information is only provided if a certificate was used for pre-authentication.
Pre-authentication types, ticket options and failure codes are defined in RFC 4120.
If the ticket was malformed or damaged during transit and could not be decrypted, then many fields in this event might not be present.
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 Kerberos Authentication Service
EventId 4771
Field Matching
FieldDescriptionStored inSample Value
When At what date and time a user activity originated in the system. DateTime
Who Account or user name under which the activity occured. Account Name DCC1$
What The type of activity occurred (e.g. Logon, Password Changed, etc.) "Kerberos pre-authentication failed" Kerberos pre-authentication failed
Where The name of the workstation/server where the activity was logged. Computer
Where From The name of the workstation/server where the activity was initiated from. Network Information: Client Address ::ffff:10.10.0.2
Severity Specify the seriousness of the event. "High" High
WhoDomain -
WhereDomain -
Result Successful or Failed. "Failed" Failed
Failure Reason Failure Reason - Bad user name or password, not enough privileges, etc. - Bad user name or password
Failure Code Additional Information: Failure Code 0x18
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