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RPC Server is Unavailable - Cannot Join Domain Server

Recently, one of my Windows XP PC was unable to join a domain controller running on Windows Server 2003 after a reboot. I received an error message saying that the “RPC
server is unavailable” after entering my username and password.

Troubleshoot that I have done:
1. My PC can ping the dc controller.
2. DNS Server is assigned correctly.
3. Netbios name is assigned correctly.
4. RPCSS service is started properly.
5. Port 135 is not blocked by firewall.

I figured out the cause of the “RPC server is unavailable” is due to spyware/rootkit has modified my system files. There is a rootkit driver called “ati2yexx.sys”. It is loaded automatically as a windows driver when my computer is started. Another serious problem is my winlogon.exe is replaced with a fake winlogon.exe which contain virus. There is no way you can remove the virus with anti-virus software. You need to manually remove them in Windows SAFE MODE.

Trojan/Win32.AutoRV.lvo
C:\WINDOWS\winlogon.exe

Trojan/Win32.IEprot.sbr
C:\WINDOWS\yuiabct.exe

Trojan/Win32.IEprot.sbr
C:\TEMP\tmp6.tmp

Solution:
1. Get into SAFE MODE and run “regedit” then search for “ati2yexx.sys”
2. Remove everything that contain “ati2yexx”
3. Remove the file c:\windows\system32\drivers\ati2yexx.dll
4. Insert your winxp cd-rom installer, go to i386 directory.
5. Expand winlogon.ex_ c:\windows\ (replace this unless your PC are infected with Win32.AutoRV.lvo)
(warning: make sure the winlogon.exe is the correct version of your windows, do not replace the old winlogon.exe if you have updated your windows service pack)

If you need any assistance, leave your comments below here.
Hope this post helps you a lot.

Good luck

Popularity: 1%

Tags: active directory, netbios, RPC server unavailable, rpcss, Windows Server

SBS 2003 - Fix SBCore Shutdown in 30 Minutes

How to fix ‘SBS Core Services‘ auto shutdown in 30 minutes?

Below is a quick fix for the auto shut down problem caused by Windows Server 2003 ‘SBS Core services’.

Error message in Event Viewer:

The License Logging service could not be restarted. The server will be shut down in 30 minutes if the service is not restarted.

Solution:

How to stop SBS Core Services (SBSCREXE.EXE) ?
First of all go and download this tool ‘Process Explorer‘

SBS Core Services will be restarted automatically once the process is killed.

To overcome this problem, use Process Explorer to suspend the process with the name ‘SBSCREXE.EXE’

After that, we will need to disable/restrict the process from being automatically restarted.

Run RegEdit32.exe and expand the nodes until you see the following folder:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SBCore

Right click on ‘SBCore’, choose permissions and give the “Administrators” group on the local machine full access. F5 to refresh and you will see some new values in your right window.

On the right window of the Registry Editor, select the “Start” DWORD and change it from “2″ to “4″ and this value will sets the service to the “Disabled” mode.

Next, go back to process explorer, and kill the sbscrexe.exe process.
If you do accordingly this method, you will have your SBCORE Services disabled by now.

ATTENTION: Use this for educational purpose only.

Popularity: 5%

Tags: SBCore, Windows SBS, Windows Server 2003

Reset Administrator password in Windows 2000/NT

Get in windows 2000 as Administrator.

NOTE: Requires a boot disk.

Get the command prompt and go to C:\winnt\sytem32\config\ and do
the following commands:

attrib -a -r -h
copy sam.* a:\
del Sam.*

Reboot the computer now. There should be no administrator password.
Just login as Administrator and hit enter. Replace the sam files to
restore the password to hide intrusion.

Popularity: 3%

Tags: admin-password, reset-password, Windows Server, windows-2000, windows-nt

Annoying License Warning on Windows Small Business Server 2003

“License usage for product Windows Server is nearing the maximum number of per server licenses purchased. Consult Licensing from the Administrative Tools folder for more information.”

If you have been receiving this annoying license warning for a server . Please don’t be worry. I got a solution here to get rid of this very annoying popup on your windows server 2003.

First of all, proceed to Administrative tools -> Services

From there, just turn off the windows services called “License Logging”

Warning: This will stop tracking your license usage of all your client computers

Popularity: 6%

Tags: license-tracking, license-warning, SBS2003, Windows Server, Windows-Small-Business-Server-2003