Spyware.CometCursor

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Updated: March 22, 2007 7:30:27 PM
Type: Spyware
Infection Length: Varies
Name: Comet Cursor Plus
Version: 4.3.333.22
Publisher: Comet Systems
Risk Impact: Medium
Systems Affected: Windows

Behavior

Spyware.CometCursor is an Internet Explorer Browser Helper Object. It installs a toolbar that has links to affiliate sites. It installs a search bar and logs usage statistics.

Comet Cursor is bundled with with various programs or can be downloaded from a Web page using an ActiveX installer.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version April 08, 2018 revision 001
  • Initial Daily Certified version September 16, 2004
  • Latest Daily Certified version April 08, 2018 revision 037
  • Initial Weekly Certified release date September 17, 2004

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Updated: March 22, 2007 7:30:27 PM
Type: Spyware
Infection Length: Varies
Name: Comet Cursor Plus
Version: 4.3.333.22
Publisher: Comet Systems
Risk Impact: Medium
Systems Affected: Windows

When the security risk runs, it assigns the user a Global User ID composed of a download number and the computer's Media Access Control (MAC) through the following site:
[http://]www.log.cc.cometsystems.com

It then changes the cursor when the user is on a site that is Comet Cursor-enabled.

It uses the Global User ID to record the URL of any Comet Cursor-enabled site that you visit, as well as the next URL that you visited after leaving that site.

The security risk periodically checks for Comet Cursor updates and, if available, downloads and installs them.

It then creates the following files and folders:

  • %ProgramFiles%\Comet\Bin
  • %ProgramFiles%\Comet\Core
  • %ProgramFiles%\Comet\Data
  • %ProgramFiles%\Comet\Install
  • %ProgramFiles%\Comet\Products
  • %ProgramFiles%\Comet\Products\adzap
  • %ProgramFiles%\Comet\Products\FunButton
  • %ProgramFiles%\Comet\Products\FunCursors
  • %ProgramFiles%\Comet\Products\FunCursors\cursors
  • %ProgramFiles%\Comet\Products\RefButton
  • %ProgramFiles%\Comet\Products\RelatedSearch
  • %ProgramFiles%\Comet\Products\Screensaver
  • %ProgramFiles%\Comet\Products\Shared
  • %ProgramFiles%\Comet\Products\ShopButton
  • %ProgramFiles%\Comet\Products\Smilettown
  • %ProgramFiles%\Comet\Products\TravelButton
  • %ProgramFiles%\Comet\Products\Travel
  • %ProgramFiles%\Comet\Products\WebButton
  • %ProgramFiles%\Comet\Products\WebCursors
  • %ProgramFiles%\Comet\Services
  • %ProgramFiles%\Comet\Services\AddRemove
  • %ProgramFiles%\Comet\Services\License
  • %ProgramFiles%\Comet\Services\Logqueue
  • %ProgramFiles%\Comet\Services\Messaging
  • %ProgramFiles%\Comet\Services\Messaging\Base
  • %ProgramFiles%\Comet\Services\Messaging\Campaigns
  • %ProgramFiles%\Comet\Services\Messaging\Campaigns\AdZap
  • %ProgramFiles%\Comet\Services\Messaging\Listeners
  • %ProgramFiles%\Comet\Temp - Contains .tmp files.
  • %ProgramFiles%\Comet\Temp\Uninstall
  • %ProgramFiles%\Comet\Update\ - Contains toolbar components, such as graphics, sounds, and scripts.
  • %ProgramFiles%\Comet\Bin\comet.exe - Comet Cursor platform loader and desktop UI, detected as Spyware.CometCursor
  • %ProgramFiles%\Comet\Bin\comutil.dll - Comet Cursor library
  • %ProgramFiles%\Comet\Bin\csapputil.dll - Comet Cursor utility library
  • %ProgramFiles%\Comet\Bin\csband.dll - Comet Cursor search functionality component
  • %ProgramFiles%\Comet\Bin\csbho.dll - Comet Cursor Browser Helper Object, contacts update.cc.cometsystems.com, detected as Spyware.CometCursor
  • %ProgramFiles%\Comet\Bin\csbrange.dll - Comet Cursor library
  • %ProgramFiles%\Comet\Bin\cscore.dll - Comet Cursor core URL gathering, detected as Spyware.CometCursor
  • %ProgramFiles%\Comet\Bin\csctx.dll - Comet Cursor context parser library
  • %ProgramFiles%\Comet\Bin\cseng.dll - Comet Cursor javascript engine
  • %ProgramFiles%\Comet\Bin\csietb.dll - Comet Cursor IE Toolbar library, detected as Spyware.CometCursor
  • %ProgramFiles%\Comet\Bin\csinst.dll - Comet Cursor library
  • %ProgramFiles%\Comet\Bin\csinstall.exe - A .html file containing a script for capturing URLs
  • %ProgramFiles%\Comet\Bin\cstray.exe - Creates a small tray icon in systray. It has an option to look for "Fun Cursors"
  • %ProgramFiles%\Comet\Bin\csutil.dll - Utility functions, called by other .dlls
  • %ProgramFiles%\Comet\Bin\fileutil.dll - File utilities functions, related to csutil.dll
  • %ProgramFiles%\Comet\Bin\unins.ico - An uninstaller icon
  • %Windir%\inf\CC_43.PNF - An install configuration file
  • %Windir%\inf\CC_43.inf - An install configuration file
  • %UserProfile%\Desktop\Comet Cursor.lnk
  • %System%\Comet.inf
  • %Userprofile%\Local Settings\Temp\ccu\comet.cab
  • %Userprofile%\Local Settings\Temp\comet_install.exe
  • %Userprofile%\Comet Cursor.lnk

The security risk creates the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar\"{FE6BC4EF-5676-484B-88AE-883323913256}" = ""
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\"{FE6BC4EF-5676-484B-88AE-883323913256}" = ""
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Accepted Documents\"[RANDOM VALUE]" ="application/x-comet"

It also creates the following registry subkeys:
HKEY_CLASSES_ROOT\CLSID\{062EFA85-8BBB-11D3-80D0-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{0922EC1A-9EC7-11D3-80B9-00500487BDBA}
HKEY_CLASSES_ROOT\CLSID\{0E42926E-96D8-11D3-80D5-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{0E429272-96D8-11D3-80D5-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{15940F5D-D8BD-49BC-851D-29DCFB166950}
HKEY_CLASSES_ROOT\CLSID\{1678F7E1-C422-11D0-AD7D-00400515CAAA}
HKEY_CLASSES_ROOT\CLSID\{212B99A1-9CF6-11D3-80B7-00500487BDBA}
HKEY_CLASSES_ROOT\CLSID\{37D026C3-84D7-4AC5-A026-C08B7907CACF}
HKEY_CLASSES_ROOT\CLSID\{39E01E09-2B45-11D4-810D-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{4320AEEB-2F2A-4F97-B573-232C6576AA3A}
HKEY_CLASSES_ROOT\CLSID\{4AA5D526-44D5-4AF6-AC53-5CE1534CC40B}
HKEY_CLASSES_ROOT\CLSID\{64726B8A-0CBE-4F80-90B7-1CA1BC69FCFB}
HKEY_CLASSES_ROOT\CLSID\{6F2D6A5E-E3E7-4F18-887C-C777650DEF57}
HKEY_CLASSES_ROOT\CLSID\{7BE4E188-DD04-47E4-8C1B-4AA330B18D9F}
HKEY_CLASSES_ROOT\CLSID\{7F0F5DA7-84CB-11D4-8137-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{827A2ECE-D76F-4BCC-82ED-D6A287C11211}
HKEY_CLASSES_ROOT\CLSID\{8AE68B04-D492-4474-A6E2-FD5FE884F4B1}
HKEY_CLASSES_ROOT\CLSID\{90C61707-C8F8-43DB-A25C-C1F4B18EE41E}
HKEY_CLASSES_ROOT\CLSID\{941228B3-3AD1-4633-A9F5-59154CB362D4}
HKEY_CLASSES_ROOT\CLSID\{A335D52F-D489-472D-9EAA-D72A40AAF7CA}
HKEY_CLASSES_ROOT\CLSID\{A5EA242A-442E-4ecb-9CAC-97037CCD6EC6}
HKEY_CLASSES_ROOT\CLSID\{C38FC998-3B1B-4F59-A710-5A6C9CF8BD92}
HKEY_CLASSES_ROOT\CLSID\{CBE7D5E7-90A2-11D3-80D1-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{CD74B159-A1D3-11D3-80BC-00500487BDBA}
HKEY_CLASSES_ROOT\CLSID\{D14D6793-9B65-11D3-80B6-00500487BDBA}
HKEY_CLASSES_ROOT\CLSID\{DA0882FB-49A3-4A9E-BB09-5E15347B5647}
HKEY_CLASSES_ROOT\CLSID\{DFA771A5-2138-48EE-A58E-F782C879AF8E}
HKEY_CLASSES_ROOT\CLSID\{E28FCB54-8C8E-11D3-80D1-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{E3A6E4B2-16B4-4F56-A98A-5F4DE04CA2BE}
HKEY_CLASSES_ROOT\CLSID\{E5C39DB9-9DCC-11D3-80D6-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{EA5BB125-A227-40A7-BCAA-652D497C2F65}
HKEY_CLASSES_ROOT\CLSID\{EB07A6D4-8E36-11D4-8138-00500487B1C5}
HKEY_CLASSES_ROOT\CLSID\{EDC4193F-34AD-4D07-AA87-E3FDB89E3E76}
HKEY_CLASSES_ROOT\CLSID\{EDEE4CCB-0913-4CC9-8EA9-3DDD87AB8BDE}
HKEY_CLASSES_ROOT\CLSID\{F147AE85-1855-4182-BE3A-174160995A40}
HKEY_CLASSES_ROOT\CLSID\{FE6BC4EF-5676-484B-88AE-883323913256}
HKEY_CLASSES_ROOT\CLSID\{3C0C31A2-70A2-11D1-B69E-444553540000}
HKEY_CLASSES_ROOT\Interface\{012B0571-2CD6-11D4-810D-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{062EFA84-8BBB-11D3-80D0-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{0922EC19-9EC7-11D3-80B9-00500487BDBA}
HKEY_CLASSES_ROOT\Interface\{0E42926F-96D8-11D3-80D5-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{0E429271-96D8-11D3-80D5-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{1348E05A-21C7-4134-B4A4-3C12234FCA3F}
HKEY_CLASSES_ROOT\Interface\{1E587528-41AA-4F19-97E8-BB75ACC3035C}
HKEY_CLASSES_ROOT\Interface\{212B99A0-9CF6-11D3-80B7-00500487BDBA}
HKEY_CLASSES_ROOT\Interface\{29089B98-AF05-4769-B627-86A745D4B672}
HKEY_CLASSES_ROOT\Interface\{2DA93E50-9D08-11D3-80D5-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{2FCFB3FD-7184-4C42-AED3-30FFF0119964}
HKEY_CLASSES_ROOT\Interface\{34FDD882-5530-4A90-89CD-416612C8855E}
HKEY_CLASSES_ROOT\Interface\{43F1B4AD-92EF-4DB3-BDA9-12335B012DD0}
HKEY_CLASSES_ROOT\Interface\{50D7C4AB-3C82-11D4-8111-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{58C59F56-CA66-4B5D-9132-ECEA5193BE5A}
HKEY_CLASSES_ROOT\Interface\{665ABE65-2C16-4341-B4B8-01FF799E8F4C}
HKEY_CLASSES_ROOT\Interface\{788E0D0E-CAF7-473B-9183-76BE6D30DC9A}
HKEY_CLASSES_ROOT\Interface\{7AA7D1C3-F0F8-460C-936D-B5886D0928EB}
HKEY_CLASSES_ROOT\Interface\{7F0F5DA6-84CB-11D4-8137-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{832786EC-9632-4919-8972-59F79D621C87}
HKEY_CLASSES_ROOT\Interface\{899BE974-D575-48BB-A9C7-1D24E8042BE4}
HKEY_CLASSES_ROOT\Interface\{8BEE173B-C006-4F0E-ACD2-84A882BEBCFF}
HKEY_CLASSES_ROOT\Interface\{910E67A6-BD53-46DF-8434-41498B7D22F7}
HKEY_CLASSES_ROOT\Interface\{9464C98E-B5F1-4C6A-BD3F-9696E3BD081E}
HKEY_CLASSES_ROOT\Interface\{97284959-A553-4576-859C-B3B3FF283DE0}
HKEY_CLASSES_ROOT\Interface\{A0CA55A0-A112-11D3-80D6-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{A0CA55A1-A112-11D3-80D6-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{A4B977F5-1EFC-4DA0-B9C2-67C53CBA140F}
HKEY_CLASSES_ROOT\Interface\{A9E67CBE-7A42-47BE-962A-C07E73C34FBA}
HKEY_CLASSES_ROOT\Interface\{AEB17FC4-2A52-4945-9866-81CC343A59E3}
HKEY_CLASSES_ROOT\Interface\{B0DB6360-8D7F-11D4-8137-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{B0E9399E-FE6F-43B0-98D3-2F47080DDE4A}
HKEY_CLASSES_ROOT\Interface\{BFCBF73B-6EB2-49C1-ADCA-CF0CD589B140}
HKEY_CLASSES_ROOT\Interface\{C0CAD17E-00A3-4F40-9015-D569C3114BA3}
HKEY_CLASSES_ROOT\Interface\{C4D86DC8-B73B-4470-9914-3DAC14EE6F95}
HKEY_CLASSES_ROOT\Interface\{C7291310-3C8C-11D4-8111-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{C81B4B57-B06B-409D-AED0-028051683796}
HKEY_CLASSES_ROOT\Interface\{CBE7D5E6-90A2-11D3-80D1-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{CBE7D5E8-90A2-11D3-80D1-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{CD74B15B-A1D3-11D3-80BC-00500487BDBA}
HKEY_CLASSES_ROOT\Interface\{CE2EAB19-E31D-43CA-A860-F95A2CA50040}
HKEY_CLASSES_ROOT\Interface\{D14D6792-9B65-11D3-80B6-00500487BDBA}
HKEY_CLASSES_ROOT\Interface\{DC86768F-5ADF-4D84-9DE8-FD047B1FE8F5}
HKEY_CLASSES_ROOT\Interface\{DDD1E8CA-678D-4C9A-A472-CE9578B14DC5}
HKEY_CLASSES_ROOT\Interface\{E28FCB53-8C8E-11D3-80D1-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{EA3B6C62-70A6-11D1-B69E-444553540000}
HKEY_CLASSES_ROOT\Interface\{EB07A6D3-8E36-11D4-8138-00500487B1C5}
HKEY_CLASSES_ROOT\Interface\{FFE56921-248B-4C75-9EEE-01706310E371}
HKEY_CLASSES_ROOT\Typelib\{3C0C31A2-70A2-11D1-B69E-444553540000}
HKEY_CLASSES_ROOT\TypeLib\{062EFA78-8BBB-11D3-80D0-00500487B1C5}
HKEY_CLASSES_ROOT\TypeLib\{07FA131E-2EB2-446F-93D2-9F877320010B}
HKEY_CLASSES_ROOT\TypeLib\{3F4386E5-2FBE-44A8-81CF-4B792490605F}
HKEY_CLASSES_ROOT\TypeLib\{5D2D50F6-6BE2-41A0-B827-1ACCD3E2E2F7}
HKEY_CLASSES_ROOT\TypeLib\{74232635-A013-49F2-B869-1B1AB932D944}
HKEY_CLASSES_ROOT\TypeLib\{7F0F5D9A-84CB-11D4-8137-00500487B1C5}
HKEY_CLASSES_ROOT\TypeLib\{878ACE1B-8DB0-4D75-9034-504756AD4215}
HKEY_CLASSES_ROOT\TypeLib\{BF986691-7F7B-4F94-85E0-20E75350701F}
HKEY_CLASSES_ROOT\TypeLib\{BFA2C963-FC24-4770-8C19-0D5A1CD58DF9}
HKEY_CLASSES_ROOT\TypeLib\{C09FB84D-B9ED-43EB-AFED-F145C26CB839}
HKEY_CLASSES_ROOT\TypeLib\{D14D6786-9B65-11D3-80B6-00500487BDBA}
HKEY_CLASSES_ROOT\BHO.CSBHO
HKEY_CLASSES_ROOT\BHO.CSBHO.1
HKEY_CLASSES_ROOT\CSBRange.ByteRange
HKEY_CLASSES_ROOT\CSBRange.ByteRange.1
HKEY_CLASSES_ROOT\CSBand.HorizontalIEBand
HKEY_CLASSES_ROOT\CSBand.HorizontalIEBand.1
HKEY_CLASSES_ROOT\CSBand.VerticalIEBand
HKEY_CLASSES_ROOT\CSBand.VerticalIEBand.1
HKEY_CLASSES_ROOT\CSEng.CSEngine
HKEY_CLASSES_ROOT\CSEng.CSEngine.1
HKEY_CLASSES_ROOT\CSEng.CSHost
HKEY_CLASSES_ROOT\CSEng.CSHost.1
HKEY_CLASSES_ROOT\CSEng.EvHandler
HKEY_CLASSES_ROOT\CSEng.EvHandler.1
HKEY_CLASSES_ROOT\CSIP.CSCollection
HKEY_CLASSES_ROOT\CSIP.CSCollection.1
HKEY_CLASSES_ROOT\CSIP.CSIPDispatch
HKEY_CLASSES_ROOT\CSIP.CSIPDispatch.1
HKEY_CLASSES_ROOT\CSIP.CSIPPacket
HKEY_CLASSES_ROOT\CSIP.CSIPPacket.1
HKEY_CLASSES_ROOT\ComUtil.FCParam
HKEY_CLASSES_ROOT\ComUtil.FCParam.1
HKEY_CLASSES_ROOT\ComUtil.FctCall
HKEY_CLASSES_ROOT\ComUtil.FctCall.1
HKEY_CLASSES_ROOT\CometAppUtil.CometUIEvents
HKEY_CLASSES_ROOT\CometAppUtil.CometUIEvents.1
HKEY_CLASSES_ROOT\CometIEToolbar.CometToolbar
HKEY_CLASSES_ROOT\CometIEToolbar.CometToolbar.1
HKEY_CLASSES_ROOT\ContextParser.CSRegExp
HKEY_CLASSES_ROOT\ContextParser.CSRegExp.1
HKEY_CLASSES_ROOT\ContextParser.ContextProxy
HKEY_CLASSES_ROOT\ContextParser.ContextProxy.1
HKEY_CLASSES_ROOT\ContextParser.ContextProxyMgr
HKEY_CLASSES_ROOT\ContextParser.ContextProxyMgr.1
HKEY_CLASSES_ROOT\ContextParser.URLContextParser
HKEY_CLASSES_ROOT\ContextParser.URLContextParser.1
HKEY_CLASSES_ROOT\Core.BHO1
HKEY_CLASSES_ROOT\Core.BHO1.1
HKEY_CLASSES_ROOT\Core.BrowserAppProxy
HKEY_CLASSES_ROOT\Core.BrowserAppProxy.1
HKEY_CLASSES_ROOT\Core.CS15Cursor
HKEY_CLASSES_ROOT\Core.CS15Cursor.1
HKEY_CLASSES_ROOT\CometCursor.CometCursor
HKEY_CLASSES_ROOT\CometCursor.CometCursor.1
HKEY_CLASSES_ROOT\Core.CometCursor
HKEY_CLASSES_ROOT\Core.CometCursor.1
HKEY_CLASSES_ROOT\Core.CometFrame
HKEY_CLASSES_ROOT\Core.CometFrame.1
HKEY_CLASSES_ROOT\Core.CometWindow
HKEY_CLASSES_ROOT\Core.CometWindow.1
HKEY_CLASSES_ROOT\Core.FileInfo
HKEY_CLASSES_ROOT\Core.FileInfo.1
HKEY_CLASSES_ROOT\Core.HttpComm
HKEY_CLASSES_ROOT\Core.HttpComm.1
HKEY_CLASSES_ROOT\Core.MyBrowser1
HKEY_CLASSES_ROOT\Core.MyBrowser1.1
HKEY_CLASSES_ROOT\Core.SelfUpdater
HKEY_CLASSES_ROOT\Core.SelfUpdater.1
HKEY_CLASSES_ROOT\Core.System
HKEY_CLASSES_ROOT\Core.System.1
HKEY_CLASSES_ROOT\Core.WindowProxy
HKEY_CLASSES_ROOT\Core.WindowProxy.1
HKEY_CLASSES_ROOT\Puk.PukBHO
HKEY_CLASSES_ROOT\Puk.PukBHO.1
HKEY_CLASSES_ROOT\SkinUI.ActiveWindow
HKEY_CLASSES_ROOT\SkinUI.ActiveWindow.1
HKEY_CLASSES_ROOT\SkinUI.CSkinUI
HKEY_CLASSES_ROOT\SkinUI.CSkinUI.1
HKEY_CLASSES_ROOT\SkinUI.WebBrowserSink
HKEY_CLASSES_ROOT\SkinUI.WebBrowserSink.1
HKEY_CLASSES_ROOT\SkinUI.WindowsHelper
HKEY_CLASSES_ROOT\SkinUI.WindowsHelper.1
HKEY_LOCAL_MACHINE\SOFTWARE\Comet Systems
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{D14D6793-9B65-11D3-80B6-00500487BDBA}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D14D6793-9B65-11D3-80B6-00500487BDBA}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cc2k
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Comet
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\CCAR
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PUK

It then modifies the value in the registry subkeyto point to a different URL:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\SearchAssistant

Updated: March 22, 2007 7:30:27 PM
Type: Spyware
Infection Length: Varies
Name: Comet Cursor Plus
Version: 4.3.333.22
Publisher: Comet Systems
Risk Impact: Medium
Systems Affected: Windows

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.
  4. Delete any values added to the registry.
  5. Reset the Internet Explorer home page.

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, reenable 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
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.

    If you use Norton AntiVirus 2006, Symantec AntiVirus Corporate Edition 10.0, or newer products, LiveUpdate definitions are updated daily. These products include newer technology.

    If you use Norton AntiVirus 2005, Symantec AntiVirus Corporate Edition 9.0, or earlier products, LiveUpdate definitions are updated weekly. The exception is major outbreaks, when definitions are updated more often.


  • 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.

The latest Intelligent Updater virus definitions can be obtained here: Intelligent Updater virus definitions . For detailed instructions read the document: How to update virus definition files using the Intelligent Updater .

3. To run a full system scan
  1. Start your Symantec antivirus program and make sure that it is configured to scan all the files.

    For Norton AntiVirus consumer products: Read the document: How to configure Norton AntiVirus to scan all files.

    For Symantec AntiVirus Enterprise products: Read the document: How to verify that a Symantec Corporate antivirus product is set to scan all files.


  2. Run a full system scan.
  3. If any files are detected, follow the instructions displayed by your antivirus program.
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 threat 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.

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. For instructions refer to the document: How to make a backup of the Windows registry .
  1. Click Start > Run.
  2. Type regedit
  3. Click OK.

    Note: If the registry editor fails to open the threat 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.
  4. Navigate to and delete the following entries:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar\"{FE6BC4EF-5676-484B-88AE-883323913256}" = ""
    HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\"{FE6BC4EF-5676-484B-88AE-883323913256}" = ""
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Accepted Documents\"[RANDOM VALUE]" ="application/x-comet"

  5. Restore the following registry entries to their original values, if required:

    HKEY_CLASSES_ROOT\CLSID\{062EFA85-8BBB-11D3-80D0-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{0922EC1A-9EC7-11D3-80B9-00500487BDBA}
    HKEY_CLASSES_ROOT\CLSID\{0E42926E-96D8-11D3-80D5-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{0E429272-96D8-11D3-80D5-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{15940F5D-D8BD-49BC-851D-29DCFB166950}
    HKEY_CLASSES_ROOT\CLSID\{1678F7E1-C422-11D0-AD7D-00400515CAAA}
    HKEY_CLASSES_ROOT\CLSID\{212B99A1-9CF6-11D3-80B7-00500487BDBA}
    HKEY_CLASSES_ROOT\CLSID\{37D026C3-84D7-4AC5-A026-C08B7907CACF}
    HKEY_CLASSES_ROOT\CLSID\{39E01E09-2B45-11D4-810D-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{4320AEEB-2F2A-4F97-B573-232C6576AA3A}
    HKEY_CLASSES_ROOT\CLSID\{4AA5D526-44D5-4AF6-AC53-5CE1534CC40B}
    HKEY_CLASSES_ROOT\CLSID\{64726B8A-0CBE-4F80-90B7-1CA1BC69FCFB}
    HKEY_CLASSES_ROOT\CLSID\{6F2D6A5E-E3E7-4F18-887C-C777650DEF57}
    HKEY_CLASSES_ROOT\CLSID\{7BE4E188-DD04-47E4-8C1B-4AA330B18D9F}
    HKEY_CLASSES_ROOT\CLSID\{7F0F5DA7-84CB-11D4-8137-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{827A2ECE-D76F-4BCC-82ED-D6A287C11211}
    HKEY_CLASSES_ROOT\CLSID\{8AE68B04-D492-4474-A6E2-FD5FE884F4B1}
    HKEY_CLASSES_ROOT\CLSID\{90C61707-C8F8-43DB-A25C-C1F4B18EE41E}
    HKEY_CLASSES_ROOT\CLSID\{941228B3-3AD1-4633-A9F5-59154CB362D4}
    HKEY_CLASSES_ROOT\CLSID\{A335D52F-D489-472D-9EAA-D72A40AAF7CA}
    HKEY_CLASSES_ROOT\CLSID\{A5EA242A-442E-4ecb-9CAC-97037CCD6EC6}
    HKEY_CLASSES_ROOT\CLSID\{C38FC998-3B1B-4F59-A710-5A6C9CF8BD92}
    HKEY_CLASSES_ROOT\CLSID\{CBE7D5E7-90A2-11D3-80D1-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{CD74B159-A1D3-11D3-80BC-00500487BDBA}
    HKEY_CLASSES_ROOT\CLSID\{D14D6793-9B65-11D3-80B6-00500487BDBA}
    HKEY_CLASSES_ROOT\CLSID\{DA0882FB-49A3-4A9E-BB09-5E15347B5647}
    HKEY_CLASSES_ROOT\CLSID\{DFA771A5-2138-48EE-A58E-F782C879AF8E}
    HKEY_CLASSES_ROOT\CLSID\{E28FCB54-8C8E-11D3-80D1-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{E3A6E4B2-16B4-4F56-A98A-5F4DE04CA2BE}
    HKEY_CLASSES_ROOT\CLSID\{E5C39DB9-9DCC-11D3-80D6-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{EA5BB125-A227-40A7-BCAA-652D497C2F65}
    HKEY_CLASSES_ROOT\CLSID\{EB07A6D4-8E36-11D4-8138-00500487B1C5}
    HKEY_CLASSES_ROOT\CLSID\{EDC4193F-34AD-4D07-AA87-E3FDB89E3E76}
    HKEY_CLASSES_ROOT\CLSID\{EDEE4CCB-0913-4CC9-8EA9-3DDD87AB8BDE}
    HKEY_CLASSES_ROOT\CLSID\{F147AE85-1855-4182-BE3A-174160995A40}
    HKEY_CLASSES_ROOT\CLSID\{FE6BC4EF-5676-484B-88AE-883323913256}
    HKEY_CLASSES_ROOT\CLSID\{3C0C31A2-70A2-11D1-B69E-444553540000}
    HKEY_CLASSES_ROOT\Interface\{012B0571-2CD6-11D4-810D-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{062EFA84-8BBB-11D3-80D0-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{0922EC19-9EC7-11D3-80B9-00500487BDBA}
    HKEY_CLASSES_ROOT\Interface\{0E42926F-96D8-11D3-80D5-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{0E429271-96D8-11D3-80D5-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{1348E05A-21C7-4134-B4A4-3C12234FCA3F}
    HKEY_CLASSES_ROOT\Interface\{1E587528-41AA-4F19-97E8-BB75ACC3035C}
    HKEY_CLASSES_ROOT\Interface\{212B99A0-9CF6-11D3-80B7-00500487BDBA}
    HKEY_CLASSES_ROOT\Interface\{29089B98-AF05-4769-B627-86A745D4B672}
    HKEY_CLASSES_ROOT\Interface\{2DA93E50-9D08-11D3-80D5-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{2FCFB3FD-7184-4C42-AED3-30FFF0119964}
    HKEY_CLASSES_ROOT\Interface\{34FDD882-5530-4A90-89CD-416612C8855E}
    HKEY_CLASSES_ROOT\Interface\{43F1B4AD-92EF-4DB3-BDA9-12335B012DD0}
    HKEY_CLASSES_ROOT\Interface\{50D7C4AB-3C82-11D4-8111-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{58C59F56-CA66-4B5D-9132-ECEA5193BE5A}
    HKEY_CLASSES_ROOT\Interface\{665ABE65-2C16-4341-B4B8-01FF799E8F4C}
    HKEY_CLASSES_ROOT\Interface\{788E0D0E-CAF7-473B-9183-76BE6D30DC9A}
    HKEY_CLASSES_ROOT\Interface\{7AA7D1C3-F0F8-460C-936D-B5886D0928EB}
    HKEY_CLASSES_ROOT\Interface\{7F0F5DA6-84CB-11D4-8137-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{832786EC-9632-4919-8972-59F79D621C87}
    HKEY_CLASSES_ROOT\Interface\{899BE974-D575-48BB-A9C7-1D24E8042BE4}
    HKEY_CLASSES_ROOT\Interface\{8BEE173B-C006-4F0E-ACD2-84A882BEBCFF}
    HKEY_CLASSES_ROOT\Interface\{910E67A6-BD53-46DF-8434-41498B7D22F7}
    HKEY_CLASSES_ROOT\Interface\{9464C98E-B5F1-4C6A-BD3F-9696E3BD081E}
    HKEY_CLASSES_ROOT\Interface\{97284959-A553-4576-859C-B3B3FF283DE0}
    HKEY_CLASSES_ROOT\Interface\{A0CA55A0-A112-11D3-80D6-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{A0CA55A1-A112-11D3-80D6-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{A4B977F5-1EFC-4DA0-B9C2-67C53CBA140F}
    HKEY_CLASSES_ROOT\Interface\{A9E67CBE-7A42-47BE-962A-C07E73C34FBA}
    HKEY_CLASSES_ROOT\Interface\{AEB17FC4-2A52-4945-9866-81CC343A59E3}
    HKEY_CLASSES_ROOT\Interface\{B0DB6360-8D7F-11D4-8137-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{B0E9399E-FE6F-43B0-98D3-2F47080DDE4A}
    HKEY_CLASSES_ROOT\Interface\{BFCBF73B-6EB2-49C1-ADCA-CF0CD589B140}
    HKEY_CLASSES_ROOT\Interface\{C0CAD17E-00A3-4F40-9015-D569C3114BA3}
    HKEY_CLASSES_ROOT\Interface\{C4D86DC8-B73B-4470-9914-3DAC14EE6F95}
    HKEY_CLASSES_ROOT\Interface\{C7291310-3C8C-11D4-8111-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{C81B4B57-B06B-409D-AED0-028051683796}
    HKEY_CLASSES_ROOT\Interface\{CBE7D5E6-90A2-11D3-80D1-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{CBE7D5E8-90A2-11D3-80D1-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{CD74B15B-A1D3-11D3-80BC-00500487BDBA}
    HKEY_CLASSES_ROOT\Interface\{CE2EAB19-E31D-43CA-A860-F95A2CA50040}
    HKEY_CLASSES_ROOT\Interface\{D14D6792-9B65-11D3-80B6-00500487BDBA}
    HKEY_CLASSES_ROOT\Interface\{DC86768F-5ADF-4D84-9DE8-FD047B1FE8F5}
    HKEY_CLASSES_ROOT\Interface\{DDD1E8CA-678D-4C9A-A472-CE9578B14DC5}
    HKEY_CLASSES_ROOT\Interface\{E28FCB53-8C8E-11D3-80D1-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{EA3B6C62-70A6-11D1-B69E-444553540000}
    HKEY_CLASSES_ROOT\Interface\{EB07A6D3-8E36-11D4-8138-00500487B1C5}
    HKEY_CLASSES_ROOT\Interface\{FFE56921-248B-4C75-9EEE-01706310E371}
    HKEY_CLASSES_ROOT\Typelib\{3C0C31A2-70A2-11D1-B69E-444553540000}
    HKEY_CLASSES_ROOT\TypeLib\{062EFA78-8BBB-11D3-80D0-00500487B1C5}
    HKEY_CLASSES_ROOT\TypeLib\{07FA131E-2EB2-446F-93D2-9F877320010B}
    HKEY_CLASSES_ROOT\TypeLib\{3F4386E5-2FBE-44A8-81CF-4B792490605F}
    HKEY_CLASSES_ROOT\TypeLib\{5D2D50F6-6BE2-41A0-B827-1ACCD3E2E2F7}
    HKEY_CLASSES_ROOT\TypeLib\{74232635-A013-49F2-B869-1B1AB932D944}
    HKEY_CLASSES_ROOT\TypeLib\{7F0F5D9A-84CB-11D4-8137-00500487B1C5}
    HKEY_CLASSES_ROOT\TypeLib\{878ACE1B-8DB0-4D75-9034-504756AD4215}
    HKEY_CLASSES_ROOT\TypeLib\{BF986691-7F7B-4F94-85E0-20E75350701F}
    HKEY_CLASSES_ROOT\TypeLib\{BFA2C963-FC24-4770-8C19-0D5A1CD58DF9}
    HKEY_CLASSES_ROOT\TypeLib\{C09FB84D-B9ED-43EB-AFED-F145C26CB839}
    HKEY_CLASSES_ROOT\TypeLib\{D14D6786-9B65-11D3-80B6-00500487BDBA}
    HKEY_CLASSES_ROOT\BHO.CSBHO
    HKEY_CLASSES_ROOT\BHO.CSBHO.1
    HKEY_CLASSES_ROOT\CSBRange.ByteRange
    HKEY_CLASSES_ROOT\CSBRange.ByteRange.1
    HKEY_CLASSES_ROOT\CSBand.HorizontalIEBand
    HKEY_CLASSES_ROOT\CSBand.HorizontalIEBand.1
    HKEY_CLASSES_ROOT\CSBand.VerticalIEBand
    HKEY_CLASSES_ROOT\CSBand.VerticalIEBand.1
    HKEY_CLASSES_ROOT\CSEng.CSEngine
    HKEY_CLASSES_ROOT\CSEng.CSEngine.1
    HKEY_CLASSES_ROOT\CSEng.CSHost
    HKEY_CLASSES_ROOT\CSEng.CSHost.1
    HKEY_CLASSES_ROOT\CSEng.EvHandler
    HKEY_CLASSES_ROOT\CSEng.EvHandler.1
    HKEY_CLASSES_ROOT\CSIP.CSCollection
    HKEY_CLASSES_ROOT\CSIP.CSCollection.1
    HKEY_CLASSES_ROOT\CSIP.CSIPDispatch
    HKEY_CLASSES_ROOT\CSIP.CSIPDispatch.1
    HKEY_CLASSES_ROOT\CSIP.CSIPPacket
    HKEY_CLASSES_ROOT\CSIP.CSIPPacket.1
    HKEY_CLASSES_ROOT\ComUtil.FCParam
    HKEY_CLASSES_ROOT\ComUtil.FCParam.1
    HKEY_CLASSES_ROOT\ComUtil.FctCall
    HKEY_CLASSES_ROOT\ComUtil.FctCall.1
    HKEY_CLASSES_ROOT\CometAppUtil.CometUIEvents
    HKEY_CLASSES_ROOT\CometAppUtil.CometUIEvents.1
    HKEY_CLASSES_ROOT\CometIEToolbar.CometToolbar
    HKEY_CLASSES_ROOT\CometIEToolbar.CometToolbar.1
    HKEY_CLASSES_ROOT\ContextParser.CSRegExp
    HKEY_CLASSES_ROOT\ContextParser.CSRegExp.1
    HKEY_CLASSES_ROOT\ContextParser.ContextProxy
    HKEY_CLASSES_ROOT\ContextParser.ContextProxy.1
    HKEY_CLASSES_ROOT\ContextParser.ContextProxyMgr
    HKEY_CLASSES_ROOT\ContextParser.ContextProxyMgr.1
    HKEY_CLASSES_ROOT\ContextParser.URLContextParser
    HKEY_CLASSES_ROOT\ContextParser.URLContextParser.1
    HKEY_CLASSES_ROOT\Core.BHO1
    HKEY_CLASSES_ROOT\Core.BHO1.1
    HKEY_CLASSES_ROOT\Core.BrowserAppProxy
    HKEY_CLASSES_ROOT\Core.BrowserAppProxy.1
    HKEY_CLASSES_ROOT\Core.CS15Cursor
    HKEY_CLASSES_ROOT\Core.CS15Cursor.1
    HKEY_CLASSES_ROOT\CometCursor.CometCursor
    HKEY_CLASSES_ROOT\CometCursor.CometCursor.1
    HKEY_CLASSES_ROOT\Core.CometCursor
    HKEY_CLASSES_ROOT\Core.CometCursor.1
    HKEY_CLASSES_ROOT\Core.CometFrame
    HKEY_CLASSES_ROOT\Core.CometFrame.1
    HKEY_CLASSES_ROOT\Core.CometWindow
    HKEY_CLASSES_ROOT\Core.CometWindow.1
    HKEY_CLASSES_ROOT\Core.FileInfo
    HKEY_CLASSES_ROOT\Core.FileInfo.1
    HKEY_CLASSES_ROOT\Core.HttpComm
    HKEY_CLASSES_ROOT\Core.HttpComm.1
    HKEY_CLASSES_ROOT\Core.MyBrowser1
    HKEY_CLASSES_ROOT\Core.MyBrowser1.1
    HKEY_CLASSES_ROOT\Core.SelfUpdater
    HKEY_CLASSES_ROOT\Core.SelfUpdater.1
    HKEY_CLASSES_ROOT\Core.System
    HKEY_CLASSES_ROOT\Core.System.1
    HKEY_CLASSES_ROOT\Core.WindowProxy
    HKEY_CLASSES_ROOT\Core.WindowProxy.1
    HKEY_CLASSES_ROOT\Puk.PukBHO
    HKEY_CLASSES_ROOT\Puk.PukBHO.1
    HKEY_CLASSES_ROOT\SkinUI.ActiveWindow
    HKEY_CLASSES_ROOT\SkinUI.ActiveWindow.1
    HKEY_CLASSES_ROOT\SkinUI.CSkinUI
    HKEY_CLASSES_ROOT\SkinUI.CSkinUI.1
    HKEY_CLASSES_ROOT\SkinUI.WebBrowserSink
    HKEY_CLASSES_ROOT\SkinUI.WebBrowserSink.1
    HKEY_CLASSES_ROOT\SkinUI.WindowsHelper
    HKEY_CLASSES_ROOT\SkinUI.WindowsHelper.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Comet Systems
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{D14D6793-9B65-11D3-80B6-00500487BDBA}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D14D6793-9B65-11D3-80B6-00500487BDBA}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cc2k
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Comet
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\CCAR
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PUK

  6. Exit the Registry Editor.

5. 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.