How to remove the BN2 virus

Most antivirus programs identify BN2.tmp as malware—such as Sophos identifies it as Mal/EncPk-HJ, and F-Secure identifies it as Trojan:W32/Agent.KNO.

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 BN2.tmp malware

BN2.tmp file information

The process BN2.tmp contains no information about its author.

Description: BN2.tmp is not essential for Windows and will often cause problems. BN2.tmp is located in a subfolder of C:\Windows. Known file sizes on Windows 10/8/7/XP are 15,546 bytes (28% of all occurrences), 90,112 bytes and 4 more variants. 
There is no information about the author of the file. The program is not visible. It is an unknown file in the Windows folder. BN2.tmp is not a Windows core file. Therefore the technical security rating is 77% dangerous.

Recommended: Identify BN2.tmp related errors

Important: You should check the BN2.tmp 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 BN2 issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active BN2 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the BN2.tmp 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

BN2.tmp [all]