This article contains tips for interpreting security auditing eventsthat are related to user authentication.
These events will all appear in the Security event log and will be loggedwith a source of Security.
EventID Description------- ----------- 514 An authentication package has been loaded by the LSA 515 A trusted logon process has registered with the LSA 518 A notification package has been loaded by the Security Account Manager 528 Successful Logon 529 Logon Failure: Unknown user name or bad password 530 Logon Failure: Account logon time restriction violation 531 Logon Failure: Account currently disabled 532 Logon Failure: The specified user account has expired 533 Logon Failure: User not allowed to logon at this computer 534 Logon Failure: The user has not been granted the requested logon type at this machine 535 Logon Failure: The specified account's password has expired 536 Logon Failure: The NetLogon component is not active 537 Logon Failure: An unexpected error occurred during logon 538 User Logoff 539 Logon Failure: Account locked out 644 User Account Locked Out
For more information about security events, click the following article number to view the article in the Microsoft Knowledge Base:
Security event descriptions
Security identifiers (SIDs)
Some security events report SIDs instead of user names. In this case,it is often difficult to determine which user account is being referredto in the event.
It is possible to build a list of mappings of user names to SIDs byperforming the following steps:
- Dump the user list to a text file with the NET USERS command or with Addusers.exe.
- Modify this text file to remove unwanted information (headers, and so forth).
- Modify the resulting list of user names into a batch file, using the GETSID resource kit utility to translate each user name into a SID. Redirect the output to a text file.
- When you encounter a SID, search the text file (created previously) for that SID. This will place you on the line with the user's name.
"Logon Type" will be one of the following:
2 Interactive 3 Network 4 Batch 5 Service 6 Proxy 7 Unlock Workstation (0 & 1 are invalid)
"Logon Process" will be one of the following:
"msv1_0" or "MICROSOFT_AUTHENTICATION_PACKAGE_V1_0": msv1_0.dll, the default authentication package "KSecDD": ksecdd.sys, the security device driver "User32" or "WinLogon\MSGina": winlogon.exe & msgina.dll, the authentication user interface "SCMgr": The Service Control Manager "LAN Manager Workstation Service" "advapi" API call to LogonUser "MS.RADIU": The RADIUS authentication package; a part of the Microsoft Internet Authentication Services (IAS).
For more information about auditing user right changes, click the following article number to view the article in the Microsoft Knowledge Base:
Auditing user right assignment changes
For more information about user authentication, click the following article number to view the article in the Microsoft Knowledge Base:
NTLM user authentication in Windows
For more information about authentication on networks, click the following article number to view the article in the Microsoft Knowledge Base:
Example of remote logon with Windows NT Server