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VirTool:WinNT/Koutodoor.A
Detected by Microsoft Defender Antivirus
Aliases: Rootkit.Koutodoor.Gen.2 (VirusBuster) Win32/Koutodoor.CM (ESET)
Summary
VirTool:WinNT/Koutodoor.A is a detection for a device driver component that is used by the Win32/Koutodoor family to modify the affected user's default Start page.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as the Microsoft Safety Scanner (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.
Additional instructions
This threat may make lasting changes to an affected system’s configuration that will NOT be restored by detecting and removing this threat. For more information on returning an affected system to its pre-infected state, please see the following article/s:
Changing your Internet Explorer Home Page:
- For Internet Explorer 7: http://windowshelp.microsoft.com/
- For Internet Explorer 6: http://support.microsoft.com/kb/252464
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