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Adware.WinTaskAd

Adware.WinTaskAd

Updated:
February 13, 2007
Publisher:
windupdates.com
Risk Impact:
High
File Names:
creditdan_WinTaskAdInstPack.exe WinProject.dll WinSched.exe WinTaskAd.exe AdStatServ.exe AdSt
Systems Affected:
Windows

Behavior


Adware.WinTaskAd displays advertisements.

Symptoms


The files are detected as Adware.WinTaskAd.

Behavior


Adware.WinTaskAd has been reportedly downloaded from Web sites.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version July 22, 2017 revision 018
  • Initial Daily Certified version December 01, 2004
  • Latest Daily Certified version July 23, 2017 revision 008
  • Initial Weekly Certified release date December 01, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Adware.WinAdTask is executed, it performs the following actions:
  1. Creates the following legitimate file:

    %System%\ide21201.vxd

    Note: %System% is a variable. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

  2. Adds the values:

    "Windows TaskAd" = "[PATH TO THE ADWARE]"
    "AdStatus Service" = "[PATH TO THE ADWARE]"
    "AdTools Service"  = "[PATH TO THE ADWARE]"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  3. Creates the following registry subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
    Windows TaskAd
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
    AdStatus Service
    HKEY_LOCAL_MACHINE\SOFTWARE\Preview AdService
    HKEY_LOCAL_MACHINE\SOFTWARE\Windows TaskAd
    HKEY_LOCAL_MACHINE\SOFTWARE\AdStatus Service
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinStatX.Installer
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinadX.Installer
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AdManCtlx.Installer
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{15AD4789-CDB4-47E1-A9DA-992EE8E6BAD6}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AdTools Service

  4. Creates the following files:

    • %ProgramFiles%\AdStatus Service.
    • %ProgramFiles%\AdStatServ.exe
    • %ProgramFiles%\AdStatKeep.exe
    • %ProgramFiles%\AdStatComm.dll
    • %ProgramFiles%\Info.txt
    • %ProgramFiles%\Windows TaskAd
    • %ProgramFiles%\WinTaskAd.exe
    • %ProgramFiles%\WinSched.exe
    • %ProgramFiles%\WinProject.dll
    • %ProgramFiles%\Info.txt
    • %Windir%\Temp\creditdan_WinTaskAdInstPack.exe
    • %UserProfile%\Local Settings\Temp\creditdan_WinTaskAdInstPack.exe


      Notes:
    • %ProgramFiles% is a variable. By default, this is C:\Program Files.
    • %Windir% is a variable. By default, this is C:\Windows (Windows 95/98/Me), C:\Winnt or C:\Windows (Windows XP/NT/2000).
    • %UserProfile% is a variable that refers to the current user's profile folder. By default, this is C:\Documents and Settings\<Current User> (Windows NT/2000/XP).

  5. Creates the folder %ProgramFiles%\Preview AdService, which contains the files PrevAdComm.dll and Info.txt.

  6. Displays advertisements.

  7. May reset the Internet Explorer home page.



The following instructions pertain to all Symantec antivirus products that support security risk detection.
  1. Update the definitions.
  2. Run a full system scan.
  3. Delete any values added to the registry.
  4. Reset the Internet Explorer home page.
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.
  2. If any files are detected, 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 risk 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 risk 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 risk for this scan only, and thus, the risk 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. Restart the computer in Normal mode.

    • 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 risk 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. Restart the computer in Normal mode.
Important: If you are unable to start your Symantec antivirus product or the product reports that it cannot delete a detected file, you may need to stop the risk from running in order to remove it. To do 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 the next section.

Warning messages may be displayed when the computer is restarted, since the risk may not be fully removed at this point. You can ignore these messages and click OK. These messages will not appear when the computer is restarted after the removal instructions have been fully completed. The messages displayed may be similar to the following:

Title: [FILE PATH]
Message body: Windows cannot find [FILE NAME]. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.

3. 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 .
  1. Click Start > Run.
  2. Type regedit

    Then click OK.

    Note: If the registry editor fails to open the risk may have modified the registry to prevent access to the registry editor. Security Response has developed a tool to resolve this problem. Download and run this tool, and then continue with the removal.

  3. Navigate to and delete the following subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
    Windows TaskAd
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
    AdStatus Service
    HKEY_LOCAL_MACHINE\SOFTWARE\Preview AdService
    HKEY_LOCAL_MACHINE\SOFTWARE\Windows TaskAd
    HKEY_LOCAL_MACHINE\SOFTWARE\AdStatus Service
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinStatX.Installer
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinadX.Installer
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AdManCtlx.Installer
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{15AD4789-CDB4-47E1-A9DA-992EE8E6BAD6}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AdTools Service

  4. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  5. In the right pane, delete the values:

    "Windows TaskAd" = "[PATH TO THE ADWARE]"
    "AdStatus Service" = "[PATH TO THE ADWARE]"
    "AdTools Service"  = "[PATH TO THE ADWARE]"

  6. Exit the Registry Editor.

4. To reset the Internet Explorer home page
  1. Start Microsoft Internet Explorer.
  2. Connect to the Internet, and then go to the page that you want to set as your home page.
  3. Click Tools > Internet Options.
  4. In the Home page section of the General tab, click Use Current > OK.

For additional information, or if this procedure does not work, read the Microsoft® Knowledge Base article: Home Page Setting Changes Unexpectedly, or You Cannot Change Your Home Page Setting, Article ID 320159 .