What is cdrom_mon.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 cdrom_mon.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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Cdrom_mon.exe file information

Windows Task Manager with cdrom_mon
Cdrom_mon.exe process in Windows Task Manager

The process known as Autorun CDROM Monitor belongs to software Autorun CDROM Monitor by ZTE CORPORATION (

Description: Cdrom_mon.exe is not essential for Windows and will often cause problems. Cdrom_mon.exe is located in a subfolder of C:\Windows\System32. Known file sizes on Windows 10/8/7/XP are 81,920 bytes (93% of all occurrences) or 86,016 bytes. 
The file is a file with no information about its developer. The program is not visible. The file is not a Windows system file. It is an unknown file in the Windows folder. Therefore the technical security rating is 70% dangerous, however you should also read the user reviews.

Recommended: Identify cdrom_mon.exe related errors

If cdrom_mon.exe is located in a subfolder of C:\Windows, the security rating is 70% dangerous. The file size is 81,920 bytes (92% of all occurrences), 86,016 bytes or 87,888 bytes. There is no description of the program. The program has no visible window. The file is not a Windows core file. It is located in the Windows folder, but it is not a Windows core file.

Important: Some malware camouflages itself as cdrom_mon.exe. Therefore, you should check the cdrom_mon.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

cdrom_mon.exe is a file by SMART Bro inc. A mobile broadband company in the Philippines. It uses ZTE modems.
  Melvin Canono   (further information)
I see that process on my machine, and I have just been to the Philippines and installed software from SMART Bro. I don't remember seeing it before.
cdrom_mon.exe is a component of ZTE USB modems that detects and activates it when plugged located either at C:\Windows\system32\SupportAppXL\cdrom_mon.exe or C:\Windows\system32\TDSupportApp\cdrom_mon.exe
i have it on my process list running located at C:\windows\system32\supportappxl\cdrom_mon.exe with a file size of 81920. and oh by the way im from Philippines and have ZTE USB Modem [ SMARTBRO ] installed in my computer
they say 71% dangerous ha I say its totally has full administrator rights and they cant be taken away unless your a genius.i just sussed it out using eset nod 32 sysinspector.
  Your Worst Nightmare  

Summary: Average user rating of cdrom_mon.exe: based on 5 votes with 5 user comments. 3 users think it's probably harmless. 2 users think cdrom_mon.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving cdrom_mon issues

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

cdrom_mon.exe [all]