W32/Virut.gen!139BDFB​8B294

This page shows details and results of our analysis on the malware W32/Virut.gen!139BDFB8B294

Overview

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.


Minimum DAT

7082 (2013-05-21)

Updated DAT

7082 (2013-05-21)

Minimum Engine

5400.1158

File Length

82944

Description Added

2013-05-22

Description Modified

2013-05-22

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionW32/Virut.gen
Length82944 bytes
MD5139bdfb8b29481360d94de6b7c13a931
SHA1d8cd7c2adb9f1be945480682221b20b1d70f24aa


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Patched-YH
AVG (GriSoft)Win32/Virut
aviraTR/Crypt.XPACK.Gen2
KasperskyVirus.Win32.Virut.ce
BitDefenderGen:Variant.Strictor.21115
F-ProtW32/Virut.AI!Generic (suspicious)
SymantecW32.Virut.CF
EsetWin32/Virut.NBP virus
pandaW32/Sality.ao
V-BusterWin32.Virut.AB.Gen
Vet (Computer Associates)Win32/Virut.17408!corrupt

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


ActivitiesRisk Levels
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Virut.gen
McAfee SupportedW32/Virut.gen



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:

D8CD7C2ADB9F1BE945480682221B20B1D70F24AA

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\EQUALIZERSETTINGS\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\HTTP\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\MMS\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MULTIMEDIA\ACTIVEMOVIE\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MULTIMEDIA\ACTIVEMOVIE\FILTER CACHE\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\WMSDK\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\WMSDK\GENERAL\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\WMSDK\REALMS\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\PLAYLISTHEIGHT = 100
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\PLAYLISTWIDTH = 194
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\SETTINGSHEIGHT = 100
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\SETTINGSWIDTH = 100
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\SHOWHORIZONTALSEPARATOR = 1
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PLAYER\TASKS\NOWPLAYING\SHOWVERTICALSEPARATOR = 1
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\HTTP\PROXYEXCLUDE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\HTTP\PROXYNAME
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\HTTP\PROXYPORT = 80
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\HTTP\PROXYSTYLE = 1
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\MMS\PROXYEXCLUDE
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\MMS\PROXYNAME
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\MMS\PROXYPORT = 1755
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\PROXYSETTINGS\MMS\PROXYSTYLE = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MULTIMEDIA\ACTIVEMOVIE\FILTER CACHE\0 = [binary data]
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\WMSDK\GENERAL\COMPUTERNAME = %COMPUTERNAME%
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\WMSDK\GENERAL\UNIQUEID = {BF02199A-CA9C-4828-BB16-8B700AEA055F}
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS MEDIA\WMSDK\GENERAL\VOLUMESERIALNUMBER = 1952645495
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\MEDIAPLAYER\PREFERENCES\FIRSTTIME = 0

Symptoms

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

Method of Infection

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

Removal

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.

Variants