Threat Explorer

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Adware.MSView

Adware.MSView

Updated:
February 13, 2007
Publisher:
http://www.msview.cc
Risk Impact:
Medium
File Names:
MSView.dll,MSView.exe,MSVprep.exe
Systems Affected:
Windows

Behavior


Adware.MSView is a Browser Helper Object that displays advertisements and downloads and installs files.

Symptoms


The files are detected as Adware.MSView.

Behavior


This adware program must be manually installed.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version February 01, 2015 revision 020
  • Initial Daily Certified version August 10, 2004
  • Latest Daily Certified version January 26, 2015 revision 023
  • Initial Weekly Certified release date August 11, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Adware.MSView is executed, it performs the following actions:
  1. Creates one or both of these files:
    • %Windir%\MSView.dll
    • %Windir%\MSVprep.exe

      Note:
      %Windir% is a variable. The adware locates the Windows installation folder (by default, this is C:\Windows or C:\Winnt) and copies the files to that location.

  2. Attempts to create the registry keys:

    HKEY_CLASSES_ROOT\CLSID\{00000580-C637-11D5-831C-00105AD6ACF0}
    HKEY_CLASSES_ROOT\TypeLib\{690BCCB4-6B83-4203-AE77-038C116594EC}
    HKEY_CLASSES_ROOT\Interface\{4534CD6B-59D6-43FD-864B-06A0D843444A}
    HKEY_CLASSES_ROOT\MSView.MSViewObj.1
    HKEY_CLASSES_ROOT\VX2.VX2Obj
    HKEY_LOCAL_MACHINE\Software\MSView



  1. Update the definitions.
  2. Run a full system scan.
  3. Delete the keys that were added to the registry.

For specific details on each of these steps, read the following instructions.

1. To update the definitions
To obtain the most recent definitions, start your Symantec program and run LiveUpdate.


2. To run the scan
  1. Start your Symantec antivirus program, and then run a full system scan.

    Note: If you ran the Add/Remove programs applet as described in the previous section, all the files may have been removed, and thus none of them will be detected.

  2. If any files are detected as Adware.MSView, and depending on which software version you are using, you may see one or more of the following options:


    Note: This applies only to versions of Norton AntiVirus that support Security Risk detection. If you are running a version of Symantec AntiVirus Corporate Edition that supports Security Risk detection, and Security Risk detection has been enabled, you will only see a message box that gives the results of the scan. If you have questions in this situation, contact your network administrator.
    • Exclude (Not recommended): If you click this button, it will set the threat so that it is no longer detectable. That is, the antivirus program will keep the security risk on your computer and will no longer detect it to remove from your computer.

    • Ignore or Skip: This option tells the scanner to ignore the threat for this scan only. It will be detected again the next time that you run a scan.

    • Cancel: This option is new to Norton Antivirus 2005. It is used when Norton Antivirus 2005 has determined that it cannot delete a security risk. This Cancel option tells the scanner to ignore the threat for this scan only, and thus, the threat will be detected again the next time that you run a scan.

      To actually delete the security risk:
      • Click its file name (under the Filename column).
      • In the Item Information box that displays, write down the full path and file name.
      • Then use Windows Explorer to locate and delete the file.

        If Windows reports that it cannot delete the file, this indicates that the file is in use. In this situation, complete the rest of the instructions on this page, restart the computer in Safe mode, and then delete the file using Windows Explorer.

    • Delete: This option will attempt to delete the detected files. In some cases, the scanner will not be able to do this.
      • If you see a message, "Delete Failed" (or similar message), manually delete the file.
      • Click the file name of the threat that is under the Filename column.
      • In the Item Information box that displays, write down the full path and file name.
      • Then use Windows Explorer to locate and delete the file.

        If Windows reports that it cannot delete the file, this indicates that the file is in use. In this situation, complete the rest of the instructions on this page, restart the computer in Safe mode, and then delete the file using Windows Explorer.


3. To delete the keys 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 keys 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 and delete the keys:

    HKEY_CLASSES_ROOT\CLSID\{00000580-C637-11D5-831C-00105AD6ACF0}
    HKEY_CLASSES_ROOT\TypeLib\{690BCCB4-6B83-4203-AE77-038C116594EC}
    HKEY_CLASSES_ROOT\Interface\{4534CD6B-59D6-43FD-864B-06A0D843444A}
    HKEY_CLASSES_ROOT\MSView.MSViewObj.1
    HKEY_CLASSES_ROOT\VX2.VX2Obj
    HKEY_LOCAL_MACHINE\Software\MSView

  4. Exit the Registry Editor.