What is netmon.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 netmon.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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Netmon.exe file information

Windows Task Manager with netmon
Netmon.exe process in Windows Task Manager

The process known as NetMon Application belongs to software Network Monitor or NetMon Application by Delphi ( or Microsoft (

Description: Netmon.exe is not essential for Windows and will often cause problems. Netmon.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 94,208 bytes (93% of all occurrences), 3,595,064 bytes or 840,206 bytes. 
There is no information about the author of the file. The program has no visible window. The file is not a Windows system file. Therefore the technical security rating is 53% dangerous, however you should also read the user reviews.

Uninstalling this variant: It is possible to completely remove Microsoft Network Monitor (Control Panel ⇒ Uninstall a Program).

Recommended: Identify netmon.exe related errors

External information from Paul Collins:

Important: Some malware also uses the file name netmon.exe, for example Spyware.ISearch (detected by Symantec), and Tool:Win32/Netmon (detected by Microsoft). Therefore, you should check the netmon.exe process on your PC to see if it is a threat. If NetMon Application has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

Pings a web address of your choosing indefinately
  Ezric   (further information)
Standard MS admin tool for packet sniffing
it is a virus and it is very dangerous
netmon.exe is a process which is registered mass-mailing worm. This virus is distributed via the Internet through e-mail and comes in the form of an e-mail message, in the hopes that you open its hostile attachment. The worm has it's own SMTP mailing engine which means it gathers E-mails from your local computer and re-distributes itself. In worst cases this worm can allow attackers to access your computer, stealing passwords and personal data. This process is a security risk and should be removed from your system.
there appears to be a spyware/adware process also called netmon.exe. it installs itself in the program files folder, in a subfolder called Network Monitor. (it was installed on my computer along with Winable.exe, ISMmodule.exe, and webbuying.exe after i visited an evil site.)
I work in the Mayor Office of my city, and I have seen this virus spread out over 600 computer in less than three hours and also convert every one fof those computer in a virus server, sendding atacks to the other ones allmost all the time
el error me aparece en windows 2000 pero acabo de formatear el equipo y no se por que me aparece no creo que sea virus
netmon.exe is awesome, you ping a site like and it gives you this little graph to show you how your ping time and dropped packets. great for troubleshooting intermittant connectivity issues

Rating chart

Summary: Average user rating of netmon.exe: based on 10 votes with 8 user comments. 2 users think netmon.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. One user suspects danger. 5 users think netmon.exe is dangerous and recommend removing it.

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Best practices for resolving netmon issues

A clean and tidy computer is the key requirement for avoiding problems with netmon. 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 netmon.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

netmon.exe [all]