What is Realmon.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 Realmon.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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Realmon.exe file information

The process known as Realmon.exe belongs to software CA eTrust Antivirus by Computer Associates International (

Description: Realmon.exe is not essential for the Windows OS and causes relatively few problems. Realmon.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 487,696 bytes (75% of all occurrences) or 504,080 bytes. 
There is an icon for this program on the taskbar next to the clock. The program has a visible window. There is no description of the program. Realmon.exe is not a Windows system file. Realmon.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 18% dangerous; however you should also read the user reviews.

Uninstalling this variant: If problems with CA eTrust Antivirus occur, you can also remove the entire program using Windows Control Panel.

Recommended: Identify Realmon.exe related errors

External information from Paul Collins:

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

Realtime Virus Scanner for E-Trust from Computer Associates
  Rob Hribar   (further information)
Realtime Virus Scanner for E-Trust from Computer Associates
E-Trust Antivirus ist die echtzeit ├╝berwachung ├╝ber ausgehende datei bzw. eingehende datei
Realtime Virus Scanner for E-Trust from Computer Associates

Rating chart

Summary: Average user rating of Realmon.exe: based on 8 votes with 4 user comments. 7 users think Realmon.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user is not sure about it.

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Best practices for resolving Realmon issues

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

Realmon.exe [all]