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  3. Adware.MatrixSearch

Adware.MatrixSearch - Removal

Updated:
February 13, 2007 11:42:47 AM
Type:
Adware
Version:
1.0.0.17
Publisher:
www.123mania.com
Risk Impact:
High
File Names:
Mshtmpre.dll
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.
  1. Disable System Restore (Windows Me/XP).
  2. Update the virus definitions.
  3. Run a full system scan and delete all the files detected as Adware.MatrixSearch.
  4. Delete the value that was added to the registry.
For specific details on each of these steps, read the following instructions.

1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.

Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.

Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.

For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:
2. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
  • Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to the Virus Definitions (LiveUpdate).
  • Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted daily. You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to the Virus Definitions (Intelligent Updater).

    The Intelligent Updater virus definitions are available: Read: How to update virus definition files using the Intelligent Updater, for detailed instructions.

3. To scan for and delete the infected files
  1. Start your Symantec antivirus program and make sure that it is configured to scan all the files.
  2. Run a full system scan.
  3. If any files are detected as infected with Adware.MatrixSearch, click Delete.

    Note:
    If your Symantec antivirus product reports that it cannot delete an infected file, Windows may be using the file. To fix this, run the scan in Safe mode. For instructions, read the document: How to start the computer in Safe Mode. Once you have restarted in Safe mode, run the scan again.

    After the files are deleted, restart the computer in Normal mode and proceed with section 4.
4. To delete the value from the registry
Important: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified subkeys only. Read the document, How to make a backup of the Windows registry, for instructions.
  1. Click Start > Run.
  2. Type regedit

    Then click OK.

  3. Navigate to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the value:

    "LoadHTML" = "rundll32.exe c:\windows\system32\regsvr32.exe,MShtmpre"

  5. Navigate to and delete the following subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
    \Explorer\Browser Helper Objects\{D879A0F1-2B3B-4409-8879-FAD6E49E1EA9}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
    \Explorer\Browser Helper Objects\{9C5B2F29-1F46-4639-A6B4-828942301D3E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
    \Explorer\Browser Helper Objects\{622CC208-B014-4FE0-801B-874A5E5E403A}

    HKEY_CLASSES_ROOT\CLSID\{15651C7C-E812-44a2-A9AC-B467A2233E7D}
    HKEY_CLASSES_ROOT\CLSID\{622CC208-B014-4FE0-801B-874A5E5E403A}
    HKEY_CLASSES_ROOT\CLSID\{9C5B2F29-1F46-4639-A6B4-828942301D3E}
    HKEY_CLASSES_ROOT\CLSID\{D879A0F1-2B3B-4409-8879-FAD6E49E1EA9}
    HKEY_CLASSES_ROOT\Interface\{16F6A635-09F8-44E6-953E-81D037647255}
    HKEY_CLASSES_ROOT\Interface\{34DCDBDB-60EF-4281-92C6-68C299AAB8E5}
    HKEY_CLASSES_ROOT\Interface\{FC02833E-9FDE-4862-974F-828887716A28}
    HKEY_CLASSES_ROOT\Interface\{722C6699-FDF7-4B4F-BDD0-F84CF5791A80}
    HKEY_CLASSES_ROOT\TypeLib\{B8F9DD56-4FFA-47B0-B9D7-42F45A752F4E}
    HKEY_CLASSES_ROOT\TypeLib\{E9A45914-275E-4866-BB75-5D65CBC3F311}
    HKEY_CLASSES_ROOT\TypeLib\{5E6895EA-E919-4331-ADBE-827D4D8915AC}
    HKEY_CLASSES_ROOT\AutoSearch1.BHOsrc
    HKEY_CLASSES_ROOT\AutoSearch1.BHOsrc.1
    HKEY_CLASSES_ROOT\AutoSearch1.SrchHook
    HKEY_CLASSES_ROOT\AutoSearch1.SrchHook.1
    HKEY_CLASSES_ROOT\Bho1.html
    HKEY_CLASSES_ROOT\Bho1.html.1
    HKEY_CLASSES_ROOT\Bho.html
    HKEY_CLASSES_ROOT\Bho.html.1

  6. Navigate to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AboutURLs

    In the right pane, delete the values:

    "html_unresident" = "res://C:\WINDOWS\System32\SIPSPI32.dll/Desinstala.htm"
    "html_stopengine" = "res://C:\WINDOWS\System32\SIPSPI32.dll/Desactiva.htm"
    "html_gotowork" = "res://C:\WINDOWS\System32\SIPSPI32.dll/Activa.htm"
    "html_onlyone" = "res://C:\WINDOWS\System32\SIPSPI32.dll/p1.htm"
    "html_reconfig3" = "res://C:\WINDOWS\System32\SIPSPI32.dll/p3.htm"
    "html_reconfig5" = "res://C:\WINDOWS\System32\SIPSPI32.dll/p5.htm"
    "html_reconfig9" = "res://C:\WINDOWS\System32\SIPSPI32.dll/p9.htm"

  7. Navigate to the registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\WinTrust
    \Trust Providers\Software Publishing\Trust Database\0

    In the right pane, delete the values:

    "ppcimdnnnjbeahepfabjipfginloedkg cfcaak"
    "ppcimdnnnjbeahepfabjipfginloedkg enodaj"
    "goicfboogidikkejccmclpieicihhlpo ejfebp"
    "goicfboogidikkejccmclpieicihhlpo imfado"
    "goicfboogidikkejccmclpieicihhlpo igcdca"

  8. Exit the Registry Editor.


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