What is webscanx.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the webscanx.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Webscanx.exe file information

Windows Task Manager with webscanx
Webscanx.exe process in Windows Task Manager

The process known as WebScanX belongs to software McAfee VirusScan or Companion Suite Pro LL by Network Associates ( or Networks Associates Technologies ( or ZzZNnrjx38nh.

Description: Webscanx.exe is not essential for the Windows OS and causes relatively few problems. Webscanx.exe is located in a subfolder of "C:\Program Files" (typically C:\Program Files\network associates\mcafee virusscan\ or C:\Program Files\mcafee\mcafee virusscan\). Known file sizes on Windows 10/8/7/XP are 143,377 bytes (83% of all occurrences), 143,394 bytes or 851,968 bytes. 
The program is not visible. Webscanx.exe is able to record keyboard inputs. Webscanx.exe is not a Windows core file. The software can be uninstalled in the Control Panel. Therefore the technical security rating is 78% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with webscanx.exe, you may want to go to the support area of the Mcafee website, make sure that you have installed the latest version or remove the entire program McAfee VirusScan On-line using Windows Control Panel.

Recommended: Identify webscanx.exe related errors

External information from Paul Collins:

Important: Some malware also uses the file name webscanx.exe, for example Trojan:Win32/Malagent (detected by Microsoft), and TROJ_GEN.RCBZ2B5 (detected by TrendMicro). Therefore, you should check the webscanx.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

I have had the same problem with the Windows Installer 3.1, and found a relatively easy solution. Reed the page at the link for 'further information' to see how to solve the problem. You can have McAfee 6 and the windows installer working on the same machine without the error.
  Ronald   (further information)
I get the same error condition with WinXP Home Version 2002 SP1 from Dell after KB893803 installation - I recovered with the information from " salukifan "
Webscanx.exe is the download scanner for McAfee 4.51... front line need it!
  johncob   (further information)
comes with mcafee installation
Windows Installer seems to be the culprit. I get the error message at boot-up and shutdown on Windows 2000 laptop. The errors began after I installed patches from Microsoft update site. I use McAfee Virus Scan version 4.5.1 and other users have similar problems, v.4.5.1 is obsolete and unsuppported according to McAfee help forum. More information on fixes is available at the McAFee link given by DeathandPain.
Agree w/ DeathAndPain, The only solution is disabling "Internet Filter" and "Download & E-mail scanning" features. This does not compromise security in VirusScan 6.x because webscanx.exe is a remnant from VirusScan 5.x. I have been having the same issue on about 50 computers after I updated Windows with the Microsoft Patch KB893803.
Agree - Death and Pain - messes up boot of Win2K and XP. Have to disable scanning features in McAfee.
Also in McAfee VirusScan v4.5.1 SP1 (used with WinXP Home). Upon installing MS Windows Installer 3.1 (KB 893803) and rebooting, the following error was"WebScanX encountered a problem and needed to close". In the VirusScan Console, VShield, Properties, the option to Enable/Disable was grayed out for Download Scan & Internet Filter. Solution: Uninstalled KB893803 in Add/Remove Programs in the Control Panel, rebooted, and now McAfee's enable/disable options for Download Scan & Internet Filter are not grayed out and the error has not reappeared as it did before with every login.
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of webscanx.exe: based on 23 votes with 9 reviews. 16 users think webscanx.exe is essential for Windows or an installed application. 5 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user thinks webscanx.exe is dangerous and recommends removing it. 3 users don't grade webscanx.exe ("not sure about it").

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Best practices for resolving webscanx issues

A clean and tidy computer is the key requirement for avoiding problems with webscanx. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the webscanx.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

webscanx.exe [all]