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  3. Adware.Ezula

Adware.Ezula - Removal

Updated:
March 25, 2011 3:15:04 PM
Type:
Adware
Risk Impact:
High
Systems Affected:
Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
Note: Removing this adware component from the system will likely cause the program that installed it to not function as intended. The uninstaller generally identifies the programs that will not work after uninstallation.

Manual Removal
  1. Update the virus definitions.
  2. Uninstall TopText using the Add/Remove Programs utility.
  3. Locating the uninstaller
  4. Run a full system scan and delete all the files detected as Adware.Ezula.
  5. Delete the values that were added to the registry.
For specific details on each of these steps, read the following instructions.

1. Updating 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 on U.S. business days (Monday through Friday). 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.

2. Uninstalling the Adware
  1. Do one of the following:
    • On the Windows 98 taskbar:
      1. Click Start > Settings > Control Panel.
      2. In the Control Panel window, double-click Add/Remove Programs.

    • On the Windows Me taskbar:
      1. Click Start > Settings > Control Panel.
      2. In the Control Panel window, double-click Add/Remove Programs.
        If you do not see the Add/Remove Programs icon, click "...view all Control Panel options."

    • On the Windows 2000 taskbar:
      By default, Windows 2000 is set up the same as Windows 98. In that case, follow the instructions for Windows 98. Otherwise, click Start, point to Settings, point to Control Panel, and then click Add/Remove Programs.

    • On the Windows XP taskbar:
      1. Click Start > Control Panel.
      2. In the Control Panel window, double-click Add or Remove Programs.

  2. Click TopText.

    Note: You may need to use the scroll bar to view the whole list.
  3. Click Add/Remove, Change/Remove, or Remove (this varies with the operating system). Follow the prompts.


3. Locating the uninstaller
Depending on the version of Ezula installed, there may not be the option to uninstall it from the Add or Remove Programs pane. If this is case, locate the uninstaller by doing the following:
    1. Using Windows Explorer, browse to the folder %ProgramFiles%\Ezula\.
    2. Locate the file UNWISE.EXE and double-click it.
    3. Follow any prompts.
    4. Using Windows Explorer again, browse to the folder %ProgramFiles%\Web Offer\.
    5. Locate the file UNWISE.EXE and double-click it.
    6. Follow any prompts.
    7. Restart your computer


4. Scanning for and deleting 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.Ezula, click Delete.

5. To delete the values from the registry

WARNING: 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.

Note: This is done to make sure that all the keys are removed. They may not be there if the uninstaller removed them.
  1. Click Start > Run.
  2. Type regedit

    Then click OK.
  3. Navigate to the subkey:

    HKEY_ALL_USERS\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the values:

    "eZmmod" = "C:\PROGRA~1\ezula\mmod.exe"
    "eZWO" = "C:\PROGRA~1\Web Offer\wo.exe"

  5. Navigate to and delete the following registry keys, if present:


    HKEY_CLASSES_ROOT\AppID\eZulaBootExe.EXE
    HKEY_CLASSES_ROOT\AppID\eZulaMain.EXE
    HKEY_CLASSES_ROOT\AppID\{8A044397-5DA2-11D4-B185-0050DAB79376}
    HKEY_CLASSES_ROOT\AppID\{C0335198-6755-11D4-8A73-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{07F0A543-47BA-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{07F0A545-47BA-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{19DFB2CB-9B27-11D4-B192-0050DAB79376}
    HKEY_CLASSES_ROOT\CLSID\{2079884B-6EF3-11D4-8A74-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{2306ABE4-4D42-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{25630B47-53C6-4E66-A945-9D7B6B2171FF}
    HKEY_CLASSES_ROOT\CLSID\{2BABD334-5C3F-11D4-B184-0050DAB79376}
    HKEY_CLASSES_ROOT\CLSID\{370F6354-41C4-4FA6-A2DF-1BA57EE0FBB9}
    HKEY_CLASSES_ROOT\CLSID\{3D7247DE-5DB8-11D4-8A72-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{3D7247E8-5DB8-11D4-8A72-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{50B4D2B3-723F-41B3-AEC4-0BD66F0F45FF}
    HKEY_CLASSES_ROOT\CLSID\{55910916-8B4E-4C1E-9253-CCE296EA71EB}
    HKEY_CLASSES_ROOT\CLSID\{58359010-BF36-11d3-99A2-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{6DF5E318-6994-4A41-85BD-45CCADA616F8}
    HKEY_CLASSES_ROOT\CLSID\{788C6F6F-C2EA-4A63-9C38-CE7D8F43BCE4}
    HKEY_CLASSES_ROOT\CLSID\{78BCF937-45B0-40A7-9391-DCC03420DB35}
    HKEY_CLASSES_ROOT\CLSID\{9CFA26C0-81DA-4C9D-A501-F144A4A000FA}
    HKEY_CLASSES_ROOT\CLSID\{A166C1B0-5CDB-447A-894A-4B9FD7149D51}
    HKEY_CLASSES_ROOT\CLSID\{B1DD8A69-1B96-11D4-B175-0050DAB79376}
    HKEY_CLASSES_ROOT\CLSID\{C03351A4-6755-11D4-8A73-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{C4FEE4A7-4B8B-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\CLSID\{D290D6E7-BF9D-42F0-9C1B-3BC8AE769B57}
    HKEY_CLASSES_ROOT\CLSID\{E7A05400-4CFA-4DF3-A643-E40F86E8E3D7}
    HKEY_CLASSES_ROOT\CLSID\{F75521B8-76F1-4A4D-84B1-9E642E9C51D0}
    HKEY_CLASSES_ROOT\Interface\{07F0A542-47BA-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{07F0A544-47BA-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{1823BC4B-A253-4767-9CFC-9ACA62A6B136}
    HKEY_CLASSES_ROOT\Interface\{19DFB2CA-9B27-11D4-B192-0050DAB79376}
    HKEY_CLASSES_ROOT\Interface\{241667A3-EC83-4885-84DD-C2DAAFC1C5EA}
    HKEY_CLASSES_ROOT\Interface\{25630B50-53C6-4E66-A945-9D7B6B2171FF}
    HKEY_CLASSES_ROOT\Interface\{27BC6871-4D5A-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{370F6327-41C4-4FA6-A2DF-1BA57EE0FBB9}
    HKEY_CLASSES_ROOT\Interface\{370F6353-41C4-4FA6-A2DF-1BA57EE0FBB9}
    HKEY_CLASSES_ROOT\Interface\{3D7247DD-5DB8-11D4-8A72-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{3D7247F1-5DB8-11D4-8A72-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{4FD8645F-9B3E-46C1-9727-9837842A84AB}
    HKEY_CLASSES_ROOT\Interface\{58359012-BF36-11D3-99A2-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{788C6F6E-C2EA-4A63-9C38-CE7D8F43BCE4}
    HKEY_CLASSES_ROOT\Interface\{78BCF936-45B0-40A7-9391-DCC03420DB35}
    HKEY_CLASSES_ROOT\Interface\{7EDC96E1-5DD3-11D4-B185-0050DAB79376}
    HKEY_CLASSES_ROOT\Interface\{8A0443A2-5DA2-11D4-B185-0050DAB79376}
    HKEY_CLASSES_ROOT\Interface\{8EBB1743-9A2F-11D4-8A7E-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{955CBF48-4313-4B1F-872B-254B7822CCF2}
    HKEY_CLASSES_ROOT\Interface\{9CFA26C2-81DA-4C9D-A501-F144A4A000FA}
    HKEY_CLASSES_ROOT\Interface\{C03351A3-6755-11D4-8A73-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{C4FEE4A6-4B8B-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\Interface\{EF0372DC-F552-11D3-8528-0050DAB79376}
    HKEY_CLASSES_ROOT\Interface\{EF0372DE-F552-11D3-8528-0050DAB79376}
    HKEY_CLASSES_ROOT\Interface\{EFA52460-8822-4191-BA38-FACDD2007910}
    HKEY_CLASSES_ROOT\TypeLib\{07F0A536-47BA-11D4-8A6D-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\TypeLib\{083FA8F4-84F4-11D4-8A77-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\TypeLib\{370F6327-41C4-4FA6-A2DF-1BA57EE0FBB9}
    HKEY_CLASSES_ROOT\TypeLib\{3D7247D1-5DB8-11D4-8A72-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\TypeLib\{58359011-BF36-11D3-99A2-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\TypeLib\{8A044396-5DA2-11D4-B185-0050DAB79376}
    HKEY_CLASSES_ROOT\TypeLib\{9CFA26C0-81DA-4C9D-A501-F144A4A000FA}
    HKEY_CLASSES_ROOT\TypeLib\{9CFA26C1-81DA-4C9D-A501-F144A4A000FA}
    HKEY_CLASSES_ROOT\TypeLib\{BAF13496-8F72-47A1-9CEE-09238EFC75F0}
    HKEY_CLASSES_ROOT\TypeLib\{C0335197-6755-11D4-8A73-0050DA2EE1BE}
    HKEY_CLASSES_ROOT\AtlBrCon.AtlBrCon
    HKEY_CLASSES_ROOT\AtlBrCon.AtlBrCon.1
    HKEY_CLASSES_ROOT\EZulaAgent.eZulaCtrlHost
    HKEY_CLASSES_ROOT\EZulaAgent.eZulaCtrlHost.1
    HKEY_CLASSES_ROOT\eZulaAgent.IEObject
    HKEY_CLASSES_ROOT\eZulaAgent.IEObject.1
    HKEY_CLASSES_ROOT\EZulaAgent.PlugProt
    HKEY_CLASSES_ROOT\EZulaAgent.PlugProt.1
    HKEY_CLASSES_ROOT\eZulaAgent.ToolBarBand
    HKEY_CLASSES_ROOT\eZulaAgent.ToolBarBand.1
    HKEY_CLASSES_ROOT\EZulaBoot.InstallCtrl
    HKEY_CLASSES_ROOT\EZulaBoot.InstallCtrl.1
    HKEY_CLASSES_ROOT\EZulaBootExe.InstallCtrl
    HKEY_CLASSES_ROOT\EZulaBootExe.InstallCtrl.1
    HKEY_CLASSES_ROOT\EZulaFSearchEng.eZulaCode
    HKEY_CLASSES_ROOT\EZulaFSearchEng.eZulaCode.1
    HKEY_CLASSES_ROOT\EZulaFSearchEng.eZulaHash
    HKEY_CLASSES_ROOT\EZulaFSearchEng.eZulaHash.1
    HKEY_CLASSES_ROOT\EZulaFSearchEng.eZulaSearch
    HKEY_CLASSES_ROOT\EZulaFSearchEng.eZulaSearch.1
    HKEY_CLASSES_ROOT\EZulaFSearchEng.PopupDisplay
    HKEY_CLASSES_ROOT\EZulaFSearchEng.PopupDisplay.1
    HKEY_CLASSES_ROOT\EZulaFSearchEng.ResultHelper
    HKEY_CLASSES_ROOT\EZulaFSearchEng.ResultHelper.1
    HKEY_CLASSES_ROOT\EZulaFSearchEng.SearchHelper
    HKEY_CLASSES_ROOT\EZulaFSearchEng.SearchHelper.1
    HKEY_CLASSES_ROOT\EZulaMain.eZulaPopSearchPipe
    HKEY_CLASSES_ROOT\EZulaMain.eZulaPopSearchPipe.1
    HKEY_CLASSES_ROOT\EZulaMain.eZulaSearchPipe
    HKEY_CLASSES_ROOT\EZulaMain.eZulaSearchPipe.1
    HKEY_CLASSES_ROOT\EZulaMain.TrayIConM
    HKEY_CLASSES_ROOT\EZulaMain.TrayIConM.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{50B4D2B3-723F-41B3-AEC4-0BD66F0F45FF}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{A166C1B0-5CDB-447A-894A-4B9FD7149D51}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{3D7247DE-5DB8-11D4-8A72-0050DA2EE1BE}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\eZula
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ModuleUsage\C:/WINDOWS/Downloaded Program Files/ezstub.dll
    HKEY_CURRENT_USER\Software\eZula
    HKEY_CURRENT_USER\Software\Web Offer

  6. Navigate to and delete the following subkeys if you are sure they are not being used by other programs:

    HKEY_CLASSES_ROOT\AppID\AtlBrowser.EXE
    HKEY_CLASSES_ROOT\CLSID\{0818D423-6247-11D1-ABEE-00D049C10000}

  7. Exit the Registry Editor.

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