How to remove the nbt virus

Most antivirus programs identify nbt.exe as malware—e.g. TrendMicro identifies it as TROJ_GEN.RCBC8IB, and F-Secure identifies it as Trojan.Generic.KDV.666895.

The nbt.exe file is a software component of Win32 Backdoor Trojan.
A file known as "nbt.exe" is a file launched by explorer.exe in Windows. This particular file is a backdoor Trojan-type virus that modifies certain system files to give it administrative control. With the control, the file runs automatically and fools Windows into thinking it is safe to run. It opens hidden operational functionality to allow remote hacking control. The file is basically used to steal keystrokes, passwords, banking credentials, credit card information, etc. In addition, the newfound permitted control of Windows allows startup editing, system file corruption, additional virus installations, etc.

NBT stands for Network Backdoor Trojan

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the nbt.exe malware

Nbt.exe file information

Windows Task Manager with nbt
Nbt.exe process in Windows Task Manager

The process appears to belong to software NBT by comName.

Description: Nbt.exe is not essential for Windows and will often cause problems. The nbt.exe file is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 724,992 bytes (33% of all occurrences), 517,216 bytes or 618,496 bytes. 
The process has no file description. The program is not visible. The process is loaded during the Windows boot process (see Registry key: MACHINE\Run, Run). It is not a Windows system file. Nbt.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 76% dangerous.

Uninstalling this variant: In case you experience problems using nbt.exe, you can uninstall NBT from your computer using the Control Panel applet Uninstall a Program.

Recommended: Identify nbt.exe related errors

Important: You should check the nbt.exe process on your PC to see if it is a threat. If NBT 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.


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Best practices for resolving nbt issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active nbt process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the nbt.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

nbt.exe [all]