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Updated: July 29, 2019 7:40:16 AM
Type: Adware
Infection Length: Varies
Name: 4Shared Desktop
Publisher: New IT Limited
Risk Impact: High
Systems Affected: Windows


Adware.4SharedDesktop is a program that modifies browser settings and displays out-of-context pop-up advertisements on the computer.

Antivirus Protection Dates

  • Initial Rapid Release version July 29, 2019 revision 001
  • Latest Rapid Release version July 29, 2019 revision 004
  • Initial Daily Certified version July 29, 2019 revision 007
  • Latest Daily Certified version July 29, 2019 revision 007
  • Initial Weekly Certified release date July 30, 2019

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Technical Description

When the program is executed, it creates the following files:

  • %ProgramFiles%\4shared Desktop\desktop.exe
  • %ProgramFiles%\4shared Desktop\Desktop32.dll
  • %ProgramFiles%\4shared Desktop\license.txt
  • %ProgramFiles%\4shared Desktop\readme.txt
  • %ProgramFiles%\4shared Desktop\ssleay32.dll
  • %ProgramFiles%\4shared Desktop\uninstall.exe
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\4shared Tools\4shared Desktop.lnk
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\4shared Tools\Uninstall.lnk
  • %SystemDrive%\Documents and Settings\AutoVM\Application Data\Microsoft\Internet Explorer\Quick Launch\4shared Desktop.lnk
  • %SystemDrive%\Documents and Settings\AutoVM\Application Data\4shared Desktop\errors.log
  • %SystemDrive%\Documents and Settings\AutoVM\Cookies\autovm@4shared[2].txt
  • %SystemDrive%\Documents and Settings\AutoVM\Desktop\4shared Desktop.lnk

The program then creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\4shared_Desktop\"" = "{EBDF1F20-C829-11D1-8233-0020AF3E97A9}"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.exe\shellex\ContextMenuHandlers\4shared_Desktop\"" = "{EBDF1F20-C829-11D1-8233-0020AF3E97A9}"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.lnk\ShellEx\ContextMenuHandlers\4shared_Desktop\"" = "{EBDF1F20-C829-11D1-8233-0020AF3E97A9}"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\4shared Desktop\"DisplayName" = "4shared Desktop"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\4shared Desktop\"DisplayIcon" = "%ProgramFiles%\4shared Desktop\desktop.exe,0"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\4shared Desktop\"UninstallString" = "%ProgramFiles%\4shared Desktop\uninstall.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\4shared Desktop\"NoModify" = "1"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\4shared Desktop\"NoRepair" = "1"
  • HKEY_LOCAL_MACHINE\SOFTWARE\4shared Desktop\"Install_Dir" = "%ProgramFiles%\4shared Desktop"
  • HKEY_LOCAL_MACHINE\SOFTWARE\4shared Desktop\"AppPath" = "%ProgramFiles%\4shared Desktop\desktop.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\4shared Desktop\"Install_Date" = "43675"
  • HKEY_LOCAL_MACHINE\SOFTWARE\4shared Desktop\"Build" = "402"
  • HKEY_LOCAL_MACHINE\SOFTWARE\4shared Desktop\"Source" = "desktop"
  • HKEY_LOCAL_MACHINE\SOFTWARE\4shared Desktop\"Install_Lang" = "1033"

The program displays an end-user license agreement (EULA) after it has been installed.

The program modifies the browser settings to add the following site under allowed notifications:

The program then displays out-of-context pop-up advertisements on the computer.


You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan. If that does not resolve the problem you can try one of the options available below.

If you are a Norton product user, we recommend you try the following resources to remove this risk.

Removal Tool
Use our tools to remove aggressive risks from your computer.

Infected Windows system files may need to be repaired using the Windows installation CD .

How to reduce the risk of infection
Check out our extensive collections of helpful advice and tips on how to stay safe online .

If you are a Symantec business product user, we recommend you try the following resources to remove this risk.

Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.

Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .

The following instructions pertain to all current Symantec antivirus products.

1. Performing a full system scan
For information on how to run a full system scan using your Symantec product, follow the guidance given in the product's Help section.

2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.