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Critical error in security log

Posted on 2006-10-24
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Last Modified: 2008-01-09
About once a week I get the following error in my security log:

Logon Failure:
  Reason: Unknown user name or bad password
  User Name: stephen
  Domain: ALWAYSONCS
  Logon Type: 8
  Logon Process: IIS
  Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
  Workstation Name: SERVER1
  Caller User Name: SERVER1$
  Caller Domain: ALWAYSONCS
  Caller Logon ID: (0x0,0x3E7)
  Caller Process ID: 1936
  Transited Services: -
  Source Network Address: -
  Source Port: -

The user name changes, usually not even a user on my network.  Is this a hacker trying to gain access to my network, or is it some bug in MS SBS that causes it?  If it is a hacker is there a way for me to trace where it is coming from?

Thanks.
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Question by:tmckinney01
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Jeffrey Kane - TechSoEasy earned 2000 total points
ID: 17875257
It could be... you can use http://www.gfi.com/downloads/downloads.aspx?pid=LANSS&lid=en to see if there are any vulnerabilities.

Also, see:  http:Q_20840915.html  for some good troubleshooting steps.

Jeff
TechSoEasy
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