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  3. W32.Goner.A@mm

W32.Goner.A@mm - Removal

Risk Level 2: Low

Discovered:
December 4, 2001
Updated:
February 13, 2007 11:41:08 AM
Also Known As:
I-Worm.Goner [Kaspersky], W32/Goner@MM [McAfee], WORM_GONER.A [Trend], W32/Goner-A [Sophos], Win32.Goner.A [Computer Associ
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

The preferred way to remove this worm is to use the removal tool. If that is not an option in your situation, you must remove the worm manually.

Removal Tool
Symantec Security Response has posted a removal tool to assist in eradicating this worm. Please go to the following Web site to read the instructions and download the removal tool:

http://securityresponse.symantec.com/avcenter/venc/data/w32.goner.a@mm.removal.tool.html


Manual Removal

An online tutorial on how to manually remove W32.Goner.A@mm is available here.

To manually remove this worm, you must restart the computer in Safe mode or end the process on the part of the worm that is running in memory. Then reverse the changes that the worm made to the registry, restart the computer, reinstall Norton AntiVirus, and then run a full system scan and delete all infected files. Detailed instructions follow.

Follow the instructions for your version of Windows.

Windows 95/98/Me
Because the worm file may be in use, you must restart in Safe mode to remove the changes made to the registry.

CAUTION: (For Windows Me users only.) If you are running Windows Me, follow the instructions in the section System Restore option in Windows Me at the end of this document before you begin the removal procedure.

Restart the computer in Safe mode by following the instructions in How to restart Windows 9x or Windows Me in Safe mode.

NOTE: Shut down the computer for a full 30 seconds before restarting in Safe Mode to make sure the worm has been cleared from memory.

Windows NT/2000/XP
Because the worm file may be in use, you must End Process on the worm files before the registry value can be removed.
  1. Press Ctrl+Alt+Delete one time.
  2. Click Task Manager.
  3. Click the Processes tab.
  4. Click the "Image Name" column header two times to sort the processes alphabetically.
  5. Scroll through the list and look for gone.scr. If you find the file, click it and then click End Process.
  6. Scroll through the list and look for pentagone. If you find the file, click it and then click End Process.
  7. Close the Task Manager.

Edit the registry

CAUTION: We strongly recommend that you back up the system registry before you make any changes. Incorrect changes to the registry could result in permanent data loss or corrupted files. Please make sure that you modify only the keys that are specified. Please see the document How to back up the Windows registry before you proceed.
  1. Click Start, and click Run. The Run dialog box appears.
  2. Type regedit and then click OK. The Registry Editor opens.
  3. Navigate to the following key:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  4. In the right pane, delete the following value:

    C:\%SYSTEM%\gone.scr C:\%SYSTEM%\gone.scr

    NOTE: %SYSTEM% is the path to the Windows System folder. In most cases this would be C:\Windows\System; however, the location could be different if the Windows System folder has been installed to a different location.
  5. Click Registry, and click Exit.
  6. Restart the computer.
  7. Reinstall NAV, and restart the computer.

Remove the worm files
  1. Run LiveUpdate to make sure that you have the most recent virus definitions.

    CAUTION: If the worm has successfully deleted the target Norton AntiVirus files, you must uninstall and then reinstall Norton AntiVirus before you can run LiveUpdate or remove the worm using Norton AntiVirus. If Norton AntiVirus was installed as part of another Symantec program, such as System Works or Norton Internet Security, you must uninstall and reinstall those as well. Read the instructions in the section How to uninstall and reinstall your Symantec software before you continue.When finished, return to this section and complete the removal procedure.
  2. Start Norton AntiVirus (NAV), and make sure that NAV is configured to scan all files. For instructions on how to do this, read the document How to configure Norton AntiVirus to scan all files.
  3. Run a full system scan.
  4. Delete all files that are detected as W32.Goner.A@mm. Deleted files must be either replaced from a clean backup or reinstalled.

Reinstall your firewall product, if needed.
Writeup By: Neal Hindocha

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