What is vsmon.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 vsmon.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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Vsmon.exe file information

Windows Task Manager with vsmon
Vsmon.exe process in Windows Task Manager

The process known as TrueVector Service or ZoneAlarm

belongs to software ZoneAlarm or ZoneAlarm Firewall or TrueVector Service or ZoneAlarm Free Firewall or Check Point Internet Security or Integrity Agent or ZoneAlarm Free Antivirus + Firewall or TrueVector Internet Monitor

by Zone Labs ( or Check Point Software Technologies LTD or Check Point Software Technologies (

Description: Vsmon.exe is not essential for Windows and will often cause problems. Vsmon.exe is located in a subfolder of C:\Windows\System32—usually C:\WINDOWS\SYSTEM32\ZoneLabs\. Known file sizes on Windows 10/8/7/XP are 75,304 bytes (52% of all occurrences), 2,435,592 bytes and 25 more variants. 
The program has no visible window. The vsmon.exe file is a Verisign signed file. The file has a digital signature. Vsmon.exe is not a Windows core file. You can uninstall this program in the Control Panel. Vsmon.exe is able to monitor applications and manipulate other programs. Therefore the technical security rating is 13% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall ZoneAlarm Security Suite, update it, or get help from the software vendor. Click on to update it, click on for support, or click on ZoneAlarm Security Suite in Windows Control Panel (Software or Programs category) to uninstall it.

Recommended: Identify vsmon.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: Some malware camouflages itself as vsmon.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the vsmon.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

Part of ZoneAlarm, absolutely destroys CPU usage eventually leading to your PC becoming a slug. Then just a pain to remove, for example crashing my PC when I tried uninstalling it. Didn't look like a virus just annoying
100% CPU HOG while on the net!
It occasionally hogs 45% of my cpu, but when it uses this cpu %age, it is doing a complete scan, when scan is over, cpu resorts back to idle state
To restrict excessive CPU usage with a multiple CPU machine use Process Explore to Set Affinity to less than half the CPUs available. For best results do this when the computer starts before vsmon.exe uses too much of your CPU.
  RAB   (further information)
It is part of Zonealarm Security. It is not dangerous unless you don't use Zonealarm in which case it is dangerous malware and should be quarantined or deleted immediately. Eats up a large amounts of memory whenever using torrent engines or prolonged internet usage. To resolve just shut down ZA and restart it. Very annoying when one core is being completely used by its process and your computer turns into a slug and internet speed is at a crawl :/ Hopefully the bug is resolved in future releases of ZA. BTW I still love ZA and recommend it to everyone I meet and all my customers because it offers the best protection in the biz.
I would confirm with sevrin, same cpu usage on mine, especially when i play online
If you're using Zone Alarm, it's a core element. Start-up CPU use depends on the size and amount of ZA and system updates.
  enrgy21com   (further information)
VSMON, for me, tends to eat CPU when I use VUZE client, I'm not sure if that's to be expected or not. It also gets into a fail loop if I use the 'TOR Project' software. Otherwise it seems to play well with my machine
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of vsmon.exe: based on 498 votes with 9 reviews. 246 users think vsmon.exe is essential for Windows or an installed application. 46 users think it's probably harmless. 90 users think it's neither essential nor dangerous. 52 users suspect danger. 64 users think vsmon.exe is dangerous and recommend removing it. 31 users don't grade vsmon.exe ("not sure about it").

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Best practices for resolving vsmon issues

A clean and tidy computer is the key requirement for avoiding problems with vsmon. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the vsmon.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

vsmon.exe [all]