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01/01/1970

Adware.Blowsearch

Type:  Adware
Discovered:  01.01.1970
Updated:  13.02.2007
Affected systems:  Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
AV Vendor:  Symantec

Description:


When Adware.Hotbar is installed, it does the following:
  • Creates the following files:

    • %Program Files%\Blowsearch\ INSTALL.LOG
    • %Program Files%\Blowsearch\ tbinstall.log
    • %Program Files%\Blowsearch\ubinst.exe
    • %Program Files%\Blowsearch\ ultrabar.dll
    • %Program Files%\Blowsearch\ UNWISE.EXE
    • C:\Documents and Settings\All Users\Application Data\Infospace

      Note: %ProgramFiles% is a variable that refers to the program files folder. By default, this is C:\Program Files.

  • Creates the following registry entries:

    HKEY_CLASSES_ROOT\CLSID\{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_CLASSES_ROOT\TypeLib\{508D52D8-117D-405A-BF53-818278D8E4A8}
    HKEY_CLASSES_ROOT\Interface\{818E8BAA-BBA9-4343-AF32-C7F51582D6B5}
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\
    Browser Helper Objects\{{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\
    {6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\
    Uninstall\BlowsearchToolbar
    HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\
    Explorer Bars\{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\MenuExt
    HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\
    Toolbar\WebBrowser\{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_CURRENT_USER\Software\Infospace
    HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\
    MUICache\[Path where executable is stored]

  • Launches Internet Explorer and tries to contact www.blowsearch.com.


    Removal instructions from Symantec Security Response Team


    The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.

  • Disable System Restore (Windows Me/XP).
  • Update the virus definitions.
  • Unregister the ultrabar.dll file.
  • Run a full system scan and delete all the files detected as Adware.Blowsearch.
  • Delete the value that was added to the registry.
  • Delete any related files.
    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:
    Note: When you are completely finished with the removal procedure and are satisfied that the threat has been removed, re-enable System Restore by following the instructions in the aforementioned documents.


    For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article, "Antivirus Tools Cannot Clean Infected Files in the _Restore Folder," Article ID: Q263455.

    2. To update the virus definitions

    Naked Security 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:
    3. To unregister the toolbar.dll file
  • Click Start > Run.
  • Type, or copy and paste, the following text:
    regsvr32 /u "%ProgramFiles%\BlowsearchToolbar\ultrabar.dll"
    then click OK.
  • If a dialog box confirming this action appears, click OK.

    4. To scan for and delete the infected files
  • Start your Symantec antivirus program and make sure that it is configured to scan all the files.
  • Run a full system scan.
  • If any files are detected as infected with Adware.Blowsearch, 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, you can leave the computer in Safe mode and proceed with section 4. When that is done, restart the computer in Normal mode.)
    5. 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 keys only. Read the document, "How to make a backup of the Windows registry," for instructions.
  • Click Start > Run.
  • Type regedit

    Then click OK.

  • Navigate to and delete these keys if they exist:

    HKEY_CLASSES_ROOT\CLSID\{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_CLASSES_ROOT\TypeLib\{508D52D8-117D-405A-BF53-818278D8E4A8}
    HKEY_CLASSES_ROOT\Interface\{818E8BAA-BBA9-4343-AF32-C7F51582D6B5}
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\
    Browser Helper Objects\{{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\
    {6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\
    Uninstall\BlowsearchToolbar
    HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\
    Explorer Bars\{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\MenuExt
    HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\
    Toolbar\WebBrowser\{6F8ADBE2-8C92-4362-B0E6-7321AA49EE46}
    HKEY_CURRENT_USER\Software\Infospace
    HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\
    MUICache\[Path where executable is stored]

  • Exit the Registry Editor.
      6. To delete any related files
    • Open "My Computer".
    • Navigate to %Program Files% and delete the folder "BlowsearchToolbar"
    • Navigate to %Documents and Settings%\All Users\Application Data and delete the folder "Infospace."


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