SBS Shutting itself down! It says I have multiple domain controllers when I don’t!

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– Tools you’ll need – Process Explorer from http://www.microsoft.com/technet/sysinternals/ProcessesAndThreads/ProcessExplorer.mspx

As you probably know, you have a service called SBCore or “SBS Core Services”, which executes the following process: C:\WINDOWS\system32\sbscrexe.exe

If you kill it, it just restarts – and if you try and stop it you are told Access Denied.

If you fire up Process Explorer, you can select the process and Suspend it, now we can start to disable the thing.

Run regedit  and expand the nodes until you reach the following hive / key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SBCore

Right click this, hit permissions and give the “Administrators” group on the local machine full access ( don’t forget to replace permissions on child nodes ). F5 in regedit and you’ll see all of the values and data under this key.

Select the “Start” DWORD and change it from 2 to 4 – this basically sets the service to the “Disabled” state as far as the MMC services snap-in (and windows for that matter) is concerned.

Next, adjust the permissions on the file C:\WINDOWS\system32\sbscrexe.exe so that EVERYONE account is denied any sort of access to this file.

Then go back to process explorer, and kill the sbscrexe.exe process, if it doesn’t restart – congratulations!

Load up the services MMC snap-in and you should find that “SBS Core Services” is stopped and marked as Disabled.

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Categories: Hacking, Windows

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