|
|
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.
Restart the computer in Safe mode or VGA mode.
Run a full system scan, and delete all files that are detected as W32.Spybot.Worm.
Delete the value that was added to the registry.
Delete any zero-byte files in the Startup folder.
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:
"How to disable or enable Windows Me System Restore"
"How to turn off or turn on Windows XP System Restore"
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 virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
Run 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).
Download 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.
3. To restart the computer in Safe mode or VGA mode
Shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode.
In Windows 95/98/Me/2000/XP users, restart the computer in Safe mode.
For instructions, read "How to start the computer in Safe Mode."
In Windows NT 4.0, restart the computer in VGA mode.
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.
For Norton AntiVirus consumer products, read "How to configure Norton AntiVirus to scan all files."
For Symantec AntiVirus Enterprise products, read "How to verify that a Symantec Corporate antivirus product is set to scan all files."
Run a full system scan.
If any files are detected as infected with W32.Spybot.Worm, write down the file names, and then click Delete.
5. To delete the value 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 only the specified keys. Read the document, "How to make a backup of the Windows registry," for instructions.
On the Windows taskbar, click Start > Run.
Type the following:
regedit
Click OK.
In the Registry Editor, navigate to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
In the right pane, delete any values that refer to the file name that was detected as infected with W32.Spybot.Worm.
Navigate to the following keys and, in the right pane, delete any values that reference the file name in step e:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServices
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_CURRENT_USER\Software\Microsoft\OLE
Exit the Registry Editor.
6. To delete the zero-byte files from the Startup folder
Follow the instructions for your version of Windows:
Note: There may be legitimate files on your system that start with "tftp." Delete only the zero-byte files from the Startup folder.
To delete zero-byte files in Windows 95/98/Me/NT/2000
On the Windows taskbar, click Start > Find (or b) > Files or Folders.
Make sure that "Look in" is set to (C:) and that "Include subfolders" is checked.
In the "Named" or "Search for..." box, type, or copy and paste, the following file name:
tftp*.*
Click Find Now or Search Now.
Delete the files that are zero bytes in size and contained within any folder whose name ends with "Startup."
To delete zero-byte files in Windows XP
On the Windows taskbar, click Start > Search.
Click All files and folders.
In the "All or part of the file name" box, type, or copy and paste, the following file name:
tftp*.*
Make sure that "Look in" is set to "Local Hard Drives" or to (C:).
Click More advanced options.
Check Search system folders.
Check Search subfolders.
Click Search.
Delete the files that are zero-bytes in size and contained within any folder whose name ends with "Startup." |
|
简体中文
繁體中文
English
Deutsch
发表于 2005-8-4 13:28
楼主