troubleshooting Question

Logon errors

Avatar of jeffsteffy
jeffsteffy asked on
Windows Server 2003Microsoft Forefront ISA Server
2 Comments2 Solutions421 ViewsLast Modified:
I am getting the following error serveral times per day:

--------------------------------------------------------------------------------
 
EVENT # 1512
EVENT LOG Security
EVENT TYPE Audit Failure
SOURCE Security
CATEGORY Logon/Logoff
EVENT ID 529
USERNAME NT AUTHORITY\SYSTEM
COMPUTERNAME   -FS1
TIME 8/8/2008 5:45:00 AM
MESSAGE Logon Failure:
Reason: Unknown user name or bad password
User Name: aaa_
Domain: F
Logon Type: 4
Logon Process: Advapi
Authentication Package: Negotiate
Workstation Name: -FS1
Caller User Name: -FS1$
Caller Domain: F
Caller Logon ID: (0x0,0x3E7)
Caller Process ID: 1308
Transited Services: -
Source Network Address: -
Source Port: -

What does this mean, is it a process running or a hacker? How do i determine this?
 
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