Solved

Thousands of Event ID 529: Am I being hacked?

Posted on 2006-11-13
10
1,240 Views
Last Modified: 2012-08-13
I came in this morning and it was reported to me that I had over two thousand security entries in the event log with ID 529, as follows -

Event Type:      Failure Audit
Event Source:      Security
Event Category:      Logon/Logoff
Event ID:      529
Date:            13/11/2006
Time:            12:24:40
User:            NT AUTHORITY\SYSTEM
Computer:      BENCOMMS
Description:
Logon Failure:
       Reason:            Unknown user name or bad password
       User Name:      BENCOMMS$
       Domain:            BENTENLOCAL
       Logon Type:      3
       Logon Process:      NtLmSsp
       Authentication Package:      NTLM
       Workstation Name:      BENCOMMS
       Caller User Name:      -
       Caller Domain:      -
       Caller Logon ID:      -
       Caller Process ID:      -
       Transited Services:      -
       Source Network Address:      -
       Source Port:      -


For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

BENCOMMS is my SBS server name and is running ISA and connected to the Internet via a router.  
They appear to start at 13:06 last Friday and are still coming in now.
I have checked my Router logs and ISA logs but cannot find anything suspicious, but admittedly I do not really know what I am looking for, I cannot seem to match anything up with the event times.

I started using netstat but got confused, I assume that some of the external ip addresses listed are websites that people are currently using.

Any help would be greatly appreciated.

Note: apologies for such low point value but I cannot work out how to convert my expert points - if you can help here then I will increase value - thanks.
0
Comment
Question by:fuzzyfreak
  • 5
  • 4
10 Comments
 
LVL 7

Expert Comment

by:CharliePete00
Comment Utility
BENCOMMS$ is the machine account for your DC, correct?  If so this may not be a hacking attempt at all it just may be a problem with the computer account.  Execute the following from the command-line and report any errors:

DCDIAG /s:<Your Server> /test:MachineAccount
0
 
LVL 74

Expert Comment

by:Jeffrey Kane - TechSoEasy
Comment Utility
Since you never responded to my post here:  http:Q_22038314.html can you at least confirm that you've made those changes?  Because otherwise it's difficult to determine what's causing this.

Jeff
TechSoEasy
0
 
LVL 4

Author Comment

by:fuzzyfreak
Comment Utility
Hi CharliePete00,

I ran the DCDIAG command and the test passed successfully.
0
 
LVL 74

Expert Comment

by:Jeffrey Kane - TechSoEasy
Comment Utility
FYI, you aren't able to become an "expert" until you reach 10,000 points.  So, you can't use the points earned until you reach that target.

Jeff
TechSoEasy
0
 
LVL 4

Author Comment

by:fuzzyfreak
Comment Utility
This is still happeneing and I have discovered that it happens right before a process starts, that is to say, it happens at the same time stamp that a process starts successfully, so though it is not debilitating to the server, it is an annoyance and presumably so many events is going to affect system performance.

Points upgraded to 500.
0
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 
LVL 74

Expert Comment

by:Jeffrey Kane - TechSoEasy
Comment Utility
Ahhh... that makes sense now... your Machine Account password has gotten corrupt somehow.  Follow the steps in this KB article to repair it:
http://support.microsoft.com/kb/325850

Jeff
TechSoEasy
0
 
LVL 4

Author Comment

by:fuzzyfreak
Comment Utility
Hi Jeff, I ran through this article but do not understand step 2.  I only have one DC, the SBS server with the problem, so if I set the Kerberos Key Distribution Center service to manual and restart the server, where will it get its Kerberos ticket?
It then goes on to say "If you can, do not disable the domain controller that has the global catalog, unless it is experiencing problems."

So, do I set this service to manual or ignore step 2?
With this in mind, what would be the syntax of my command?

Thanks
0
 
LVL 74

Accepted Solution

by:
Jeffrey Kane - TechSoEasy earned 500 total points
Comment Utility
Just skip those steps.  Your syntax should be something like this:

netdom resetpwd /s:BENCOMMS /ud:BENTENLOCAL\administrator /pd:*

Then, just reboot and you should be fine.

Jeff
TechSoEasy
0
 
LVL 4

Author Comment

by:fuzzyfreak
Comment Utility
Thanks very much Jeff.  I've done that and am now monitoring.
0
 
LVL 4

Author Comment

by:fuzzyfreak
Comment Utility
Thanks Jeff, that worked a treat.
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Written by Glen Knight (demazter) as part of a series of how-to articles. Introduction One of the biggest consumers of disk space with Small Business Server 2008(SBS) is Windows Server Update Services, more affectionately known as WSUS. For t…
I've often see, or have been asked, the question about the difference between the Exchange 2010 SP1 version, available as part of Small Business Server (SBS) 2011, and the “normal” Exchange 2010 SP1 Standard. The answer to the question is relativ…
It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now