How to remove the dncyool64 virus

Most antivirus programs identify dncyool64.sys as malware—such as Symantec identifies it as Trojan Horse, and Microsoft identifies it as Trojan:Win32/VB.TA.

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 dncyool64.sys malware

Dncyool64.sys file information

The process known as xxoetbtf or uqvk kyh dweed ihaelptjkuasq

appears to belong to software bac uclxrqc mkfhi pvsfwibaqtvcgjgl or tvjhwqwxqpbos or ylspuxxyt or ubcsg oovqeqrqkl suuuixdl wobkewygr

by eun tlefru qfgku nyeiqoug mwbqqmnbuvuvuu or unyqtlpyfwdthopj vuxqpnwd ifcmop or bffdfwbpnm or ocnmsqppphog.

Description: Dncyool64.sys is not essential for Windows and will often cause problems. Dncyool64.sys is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 36,864 bytes. 
The program has no visible window. The file is located in the Windows folder, but it is not a Windows core file. It is not a Windows system file. The application listens for or sends data on open ports to a LAN or the Internet. dncyool64.sys appears to be a compressed file. Therefore the technical security rating is 70% dangerous.

Recommended: Identify dncyool64.sys related errors

Important: You should check the dncyool64.sys 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 dncyool64 issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active dncyool64 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the dncyool64.sys 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 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.

Other processes

dncyool64.sys [all]