Question

Is this a network Breakin?

Asked by: TG-TIS

In a Windows network with 1-Win2k, 2-Win2003 servers, 30 PC's (29-xp, 1-vista) all in a domain. The following messages were found in the logs this morning. The addres book log appeard about 10 times.

How can I determine where and who did it? It appears to be a remote user, but I need to clarify it.
Event Type: Success Audit
Event Source: Security
Event Category: Directory Service Access
Event ID: 836
Date:  11/1/2009
Time:  4:59:22 AM
User:  NT AUTHORITY\SYSTEM
Computer: HPM1
Description:
 Destination DRA: CN=NTDS Settings,CN=HPM1,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=xxx,DC=ads
  Source DRA: CN=NTDS Settings,CN=HPM3,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=xxx,DC=ads
  Naming Context: DC=xxx,DC=ads
  Options: 85
  Session ID: 453
  Start USN: 2461457

Event Type: Information
Event Source: MSExchangeIS
Event Category: General
Event ID: 9678
Date:  11/1/2009
Time:  5:11:16 AM
User:  N/A
Computer: HPM1
Description:
User "NT AUTHORITY\SYSTEM" has attempted a full download of the Offline Address Book. Please note that it may require several attempts before the download is complete.

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Asked On
2009-11-01 at 06:58:53ID24861834
Tags

security

Topics

Windows 2003 Server

,

Exchange Email Server

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Answers

 

by: stehardy88Posted on 2009-11-01 at 07:57:01ID: 25714115

No - this entry is generated when you turn on "audit directory service" policy. If you're not wanting to view this data (which I'm guessing you don't), then you're best looking at and tweaking your Default GPO Auditing Policies.


Log onto your DC, edit Domain Default GPO and change the following: Computer configuration>Windows settings> Security settings>Local Policys>Security options>Audit policy

 

by: TG-TISPosted on 2009-11-01 at 10:46:09ID: 25714834

What about the 2nd message relating to the address book being downloaded. I had about ten of those. One right after the other. Could that be a user or malware app trying to capture the global addres book? If so, how to I better identify what happened and stop it from ocurring again?

20120131-EE-VQP-002

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