What is mbamdor.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 mbamdor.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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Mbamdor.exe file information

Windows Task Manager with mbamdor
Mbamdor.exe process in Windows Task Manager

The process known as Malwarebytes Anti-Malware belongs to software Malwarebytes Anti-Malware by Malwarebytes (

Description: Mbamdor.exe is not essential for the Windows OS and causes relatively few problems. The file mbamdor.exe is located in a subfolder of "C:\ProgramData" or sometimes in a subfolder of Windows folder for temporary files (mainly C:\ProgramData\Malwarebytes\Malwarebytes Anti-Malware\). Known file sizes on Windows 10/8/7/XP are 55,264 bytes (50% of all occurrences) or 54,072 bytes. 
The program has a visible window. The mbamdor.exe file is a Verisign signed file. It is certified by a trustworthy company. Mbamdor.exe is not a Windows core file. The program starts when Windows starts (see Registry key: MACHINE\RunOnce). Therefore the technical security rating is 17% dangerous.

Recommended: Identify mbamdor.exe related errors

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


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Best practices for resolving mbamdor issues

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

mbamdor.exe [all]