Virus Profile: RDN/Generic BackDoor!40884DD46ECA

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 8/2/2013
Date Added: 8/2/2013
Origin: Unknown
Length: 146944
Type: Trojan
Subtype: -
DAT Required: 7154
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Indication of Infection

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

   

Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic BackDoor
Length146944 bytes
MD540884dd46ecaaa80179679e0c9ac93ef
SHA100ccc0783d8cb58e215356eb55b30480b934efbd


Other Common Detection Aliases

Company NamesDetection Names
EMSI SoftwareGen:Variant.Zusy.56708 (B)
ahnlabTrojan/Win32.ZAccess
KasperskyBackdoor.Win32.ZAccess.crux
BitDefenderGen:Variant.Zusy.56708
FortiNetW32/ZAccess.CRCD!tr
MicrosoftTrojan:Win32/Sirefef.P
EsetWin32/Kryptik.BJGF
normanwinpe/Suspicious_Gen5.ACYVR
SophosTroj/Agent-ACYP

Other brands and names may be claimed as the property of others.


ActivitiesRisk Levels
Attempts to load and execute remote code in explorer processHigh
Attempts to write to a memory location of a protected process.High
Attempts to write to a memory location of a Windows system processHigh
Attempts to load and execute remote code in a previously loaded processMedium
Enumerates many system files and directories.Low
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Generic BackDoor
McAfee SupportedRDN/Generic BackDoor



System Changes

Some path values have been replaced with environment variables as the exact location may vary with different configurations.
e.g.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files


The following files were analyzed:

00CCC0783D8CB58E215356EB55B30480B934EFBD

The following files have been added to the system:

  • %PROGRAMFILES%\Google\Desktop\Install\{d44964d7-a019-3788-19b4-53708c0fc651}\ \ \\{d44964d7-a019-3788-19b4-53708c0fc651}\@
  • %USERPROFILE%\Local Settings\Application Data\Google\Desktop\Install\{d44964d7-a019-3788-19b4-53708c0fc651}\\\\{d4
  • %PROGRAMFILES%\Google\Desktop\Install\{d44964d7-a019-3788-19b4-53708c0fc651}\ \ \\{d44964d7-a019-3788-19b4-53708c0fc651}\GoogleUpdate.exe
  • %PROGRAMFILES%\Google\Desktop\Install\{d44964d7-a019-3788-19b4-53708c0fc651}\ \ \\{d44964d7-a019-3788-19b4-53708c0fc651}\@:@
  • %WINDIR%\assembly\GAC\Desktop.ini

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.386\OPENWITHPROGIDS\VXDFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.AIF\OPENWITHPROGIDS\AIFFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.AIFC\OPENWITHPROGIDS\AIFFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.AIFF\OPENWITHPROGIDS\AIFFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.ASF\OPENWITHPROGIDS\ASFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.ASX\OPENWITHPROGIDS\ASXFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.AU\OPENWITHPROGIDS\AUFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.AVI\OPENWITHPROGIDS\AVIFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.BMP\OPENWITHPROGIDS\PAINT.PICTURE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.CDA\OPENWITHPROGIDS\CDAFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.CHK\OPENWITHPROGIDS\CHKFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.CSS\OPENWITHPROGIDS\CSSFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.DIB\OPENWITHPROGIDS\PAINT.PICTURE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.DOC\OPENWITHPROGIDS\WORD.DOCUMENT.8
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.DOT\OPENWITHPROGIDS\WORD.TEMPLATE.8
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.EMF\OPENWITHPROGIDS\EMFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.EML\OPENWITHPROGIDS\MICROSOFT INTERNET MAIL MESSAGE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.GIF\OPENWITHPROGIDS\GIFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.HTM\OPENWITHPROGIDS\HTMLFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.HTML\OPENWITHPROGIDS\HTMLFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.ICO\OPENWITHPROGIDS\ICOFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.IVF\OPENWITHPROGIDS\IVFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.JFIF\OPENWITHPROGIDS\PJPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.JPE\OPENWITHPROGIDS\JPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.JPEG\OPENWITHPROGIDS\JPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.JPG\OPENWITHPROGIDS\JPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.M1V\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.M3U\OPENWITHPROGIDS\M3UFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MHT\OPENWITHPROGIDS\MHTMLFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MHTML\OPENWITHPROGIDS\MHTMLFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MID\OPENWITHPROGIDS\MIDFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MIDI\OPENWITHPROGIDS\MIDFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MP2\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MP2V\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MP3\OPENWITHPROGIDS\MP3FILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MPA\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MPE\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MPEG\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MPG\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.MPV2\OPENWITHPROGIDS\MPEGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.NWS\OPENWITHPROGIDS\MICROSOFT INTERNET NEWS MESSAGE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.OBD\OPENWITHPROGIDS\OFFICE.BINDER.9
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.OBT\OPENWITHPROGIDS\OFFICE.BINDER.TEMPLATE.9
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.OCX\OPENWITHPROGIDS\OCXFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.PNG\OPENWITHPROGIDS\PNGFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.POT\OPENWITHPROGIDS\POWERPOINT.TEMPLATE.8
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.PPT\OPENWITHPROGIDS\POWERPOINT.SHOW.8
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.RMI\OPENWITHPROGIDS\MIDFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.RTF\OPENWITHPROGIDS\WORD.RTF.8
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.SND\OPENWITHPROGIDS\AUFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.TIF\OPENWITHPROGIDS\MSPAPER.DOCUMENT
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.TIFF\OPENWITHPROGIDS\MSPAPER.DOCUMENT
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.TXT\OPENWITHPROGIDS\TXTFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.URL\OPENWITHPROGIDS\INTERNETSHORTCUT
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.VXD\OPENWITHPROGIDS\VXDFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WAV\OPENWITHPROGIDS\SOUNDREC
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WAX\OPENWITHPROGIDS\WAXFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WM\OPENWITHPROGIDS\ASFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WMA\OPENWITHPROGIDS\WMAFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WMF\OPENWITHPROGIDS\WMFFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WMV\OPENWITHPROGIDS\WMVFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WMX\OPENWITHPROGIDS\ASXFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WRI\OPENWITHPROGIDS\WRIFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.WVX\OPENWITHPROGIDS\WVXFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.XLS\OPENWITHPROGIDS\EXCEL.SHEET.8
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.XLT\OPENWITHPROGIDS\EXCEL.TEMPLATE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.XML\OPENWITHPROGIDS\XMLFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.XSL\OPENWITHPROGIDS\XSLFILE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\FILEEXTS\.ZIP\OPENWITHPROGIDS\WINRAR.ZIP
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\GOOGLE UPDATE? = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\DESCRIPTION = Keeps your Google software up to date. If this service is disabled or stopped, your Google software will not be kept up to date, meaning security vulnerabilities that may arise cannot be fixed and features may not work. This service uninstalls itself when there is no Google software using it.
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\DISPLAYNAME = Google Update Service (gupdate)
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\ERRORCONTROL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\IMAGEPATH = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\OBJECTNAME = LocalSystem
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\START = 2
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\TYPE = 16
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\ETADPUG\PARAMETERS\PARAMETERS? = 132
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\DELETEFLAG = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\ERRORCONTROL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\START = 4
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\NAMESPACE_CATALOG5\CATALOG_ENTRIES\000000000001\LIBRARYPATH = mswsock.dll
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\NAMESPACE_CATALOG5\CATALOG_ENTRIES\000000000003\LIBRARYPATH = mswsock.dll
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000001\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000002\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000003\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000004\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000005\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000006\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000007\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000008\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000009\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000010\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000011\PACKEDCATALOGITEM = [binary data]

The applications attempted the following network connection(s):

  • 108.168.255.***:80

   

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

   

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