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What is nessusd.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 nessusd.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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Nessusd.exe file information

Windows Task Manager with nessusd
Nessusd.exe process in Windows Task Manager

The process known as newtd.exe or Nessus or Tenable Nessus (version (x64)) belongs to software Nessus Security Scanner or Nessus or Tenable Nessus by Tenable Network Security (www.tenable.com).

Description: Nessusd.exe is not essential for Windows and will often cause problems. The file nessusd.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 8/7/XP are 13,312 bytes (79% of all occurrences), 619,520 bytes, 908,288 bytes, 613,888 bytes or 770,560 bytes. http://www.file.net/process/nessusd.exe.html 
The program has no visible window. It is not a Windows system file. The process listens for or sends data on open ports to a LAN or the Internet. You can uninstall this program in the Control Panel. Therefore the technical security rating is 45% dangerous; however you should also read the user reviews.
It is possible to do the following:
  1) uninstall the program using the Control Panel ⇒ Add/Remove programs ⇒ Tenable Nessus or Nessus
  2) consult Tenable's Customer Service.

Recommended: Identify nessusd.exe related errors

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

Score

User Comments

Servise of Tenable Network Security. Program - Nessus
  Immortal   (further information)
This process represents the Nessus Server. If you don't want to run it (it takes plenty of system resources) all the time, you might consider stopping it from the Nessus Server Manager.
  rba  
Part of the Tenable Nessus security scanner package
  JRPaulson   (further information)

Rating chart

Summary: Average user rating of nessusd.exe: based on 6 votes with 3 user comments. 2 users think nessusd.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. One user thinks nessusd.exe is dangerous and recommends removing it.


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Best practices for resolving nessusd issues

A clean and tidy computer is the key requirement for avoiding problems with nessusd. 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 doing a repair of your installation, or in the case of Windows 8, 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 nessusd.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

nessusd.exe [all]