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Logon Process: Advapi Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0

Flipp asked
Last Modified: 2013-12-06
In our SBS event viewer I noticed a large number of security failures for the above logon process and authentication package:
Logon Failure:
       Reason:      Unknown user name or bad password
       User Name:      666
       Logon Type:      3
       Logon Process:      Advapi
       Authentication Package:      MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
       Workstation Name:      SERVER
       Caller User Name:      SERVER$
       Caller Domain:      DOMAIN
       Caller Logon ID:      (0x0,0x3E7)
       Caller Process ID:      12592
       Transited Services:      -
       Source Network Address:      -
       Source Port:      -

The Username changes each attempt.

I initially thought that this was spawning from my SERVER, but after diagnosing the event log, I am thinking that it is a workstation on the domain that is attempting to connect.

Can anyone confirm this for me and suggest a strategy on how to find the workstation in question?
We currently only have AV installed on all using CA eTrust, but could look at Pest Patrol which is a part of the suite.
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