W32.Imaut.U1

W32.Imaut.U

Discovered: January 6, 2007

Updated: February 13, 2007 1:03:11 PM

Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
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.

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 RestoreNote: 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