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How to remove the DSO Exploit

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#1 Grinler


    Lawrence Abrams

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Posted 08 October 2004 - 03:49 PM

This self-help guide will walk you through the steps to remove the DSO Exploit

What this program does: For most people you are seeing a notification that your computer has the DSO Exploit when you run a Spybot - Search & Destroy scan. If you have the latest updates for Internet Explorer and Windows you are not vulnerable to this exploit even though Spybot is reporting it is so. On the other hand, if you are not fully updated you may be vulnerable to this exploit which could allow a remote user to take control of your machine. Tools Needed for this fix: Related Tutorials:

Instructions:   If you have all the updates in Windows and Internet Explorer and are receiving messages stating you are vulnerable to this exploit, you safe ignore this message. If you still want to make it so that you do not get these messages when running Spybot, the follow these directions: When you run Spybot you may receive these entries in your log: DSO Exploit: Data source object exploit (Registry change, nothing done)
HKEY_USERS\S-1-5-18\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0\1004!=W=3 To fix this we need to change type of key it is in the registry. If you do not feel comfortable editing the registry then please ask for help on this in the forums. If you do feel comfortable follow these steps:  
  1. Download and install registrar lite.

  2. When it is installed, run the application and paste the key found in the log, up to the 0 and before the 10004, into the address field and press enter. For example for the above log we would enter :

    HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0\

  3. You should now see a listing of numbers in the right section of the program.

  4. Double-click on the 1004 value and when the properties come up check the Type field.

    1. If it is set to REG_DWORD:

      1. Enter 3 into the Hexadecimal field.

      2. Press OK

      3. Skip to step 5

    2. If it is set to REG_SZ:

      1. Press the Cancel button and right-click on the 1004 entry and click on the Delete option. When it asks you for confirmation press the Yes button.

      2. Then right-click in the right section and select the New Value option with a type of REG_DWORD.

      3. When it asks for confirmation press the Yes button.

      4. When the properties screen opens enter 1004 into the Value Name field and 3 into the Hexadecimal field.

      5. Press Apply then OK. If it asks for any confirmations, press Yes

  5. Follow this same procedure for other DSO Exploit listings you find in the Spybot log.

  6. When you are done exit Registrar Lite.

  7. Reboot your computer.
Spybot and other spyware removal programs will no longer tell you that you have this exploit.

This is a self-help guide. Use at your own risk.

BleepingComputer.com can not be held responsible for problems that may occur by using this information. If you would like help with any of these fixes, you can post a HijackThis log in our HijackThis Logs and Analysis forum.

If you have any questions about this self-help guide then please post those questions in our AntiVirus, Firewall and Privacy Products and Protection Methods forum and someone will help you.

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