Re: Event ID 539 & 529 in large numbers - from what?

Hi Cliff,

Both the username and the workstation name are legitimate user/workstation
on the network. Nothing *appears* to be coming externally.

Ruth


"Cliff Galiher" <cgaliher@xxxxxxxxx> wrote in message
news:084DFA13-DA26-43DD-907E-10FE99490D50@xxxxxxxxxxxxxxxx
In the logs you posted, is <username> the name of a user or a machine?
And is <workstation> a machine on your network, or does it appear as
though it is coming in from an external source?

-Cliff

"Ruth Cheesley suffolkcomputerservices co (dot) uk>" <newsgroup<atdot>
wrote in message news:eoKo6fquIHA.2188@xxxxxxxxxxxxxxxxxxxxxxx
Hello all,

Wondered if anyone can point me in the right direction for identifying
what may be causing the following, which started appearing in the event
logs today (SBS 2003). The only thing unique about this particular
workstation is that it's running Sage Payroll with data on the SBS as a
share. The company only has two other laptops alongside this workstation
and the small business server, and 1 printer. Therefore this large
number of failures was somewhat alarming when reading through the reports
today! All computers and laptops are running legitimate copies of XP,
with AVG Small Business Internet Security edition on server & all
computers. All are up to date with windows critical & security updates
bar SP3.

Source Event ID Last Occurrence Total Occurrences
Security 539 20/05/2008 14:35 12,232 *
Logon Failure:
Reason: Account locked out
User Name: <username>
Domain: <domain name>
Logon Type: 3
Logon Process: NtLmSsp
Authentication Package: NTLM
Workstation Name: <workstation name>
Caller User Name: -
Caller Domain: -
Caller Logon ID: -
Caller Process ID: -
Transited Services: -
Source Network Address: 10.0.0.53
Source Port: 0


Source Event ID Last Occurrence Total Occurrences
Security 529 20/05/2008 14:31 117 *
Logon Failure:
Reason: Unknown user name or bad password
User Name: <username>
Domain: <domain name>
Logon Type: 3
Logon Process: NtLmSsp
Authentication Package: NTLM
Workstation Name: <workstation name>
Caller User Name: -
Caller Domain: -
Caller Logon ID: -
Caller Process ID: -
Transited Services: -
Source Network Address: 10.0.0.53
Source Port: 0

Many thanks,

Ruth









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Relevant Pages

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