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Danger level 6
Type: Trojans
Common infection symptoms:
  • Connects to the internet without permission
  • Installs itself without permissions
  • Slow Computer
  • Slow internet connection
  • System crashes


Trojan.Yenfhur.A is not a regular Trojan, which is initially composed of multiple high-risk components, and which could boast of extremely dangerous processes. Nonetheless, you should not take this infectious application for granted, because its low-level risk dynamic link library files could be used to bring real detriment. The cunning program has been activated in the end of 2009, and since then has been recorded with various generic and individual names, like Win32/Junravia.B,, Trojan.Win32.BHO, and Trojan:Win32/Yenfhur.A. It is still not entirely clear how this cyber criminals’ infection has managed to infect multiple operating Windows systems; however, it is highly likely that this devious application is propagated via spam email attachments and bundled downloads, as some of its malignant processes can be found in OGAVerify.rar and lastmon.rar files.

Lastmon.dll (193.04KB) is one of the components responsible for all infection’s processes; however, the name of this file can differ from one infected system to another, and you should also make sure to delete files with such randomly generated names as cunta.dll, gln.dll, kuser.dll, mukmil.dll, ssa.dll, or spria.dll. Of course, if you do not know how to remove Trojan.Yenfhur.A components, you should trust automatic removal tools to do it for you. All in all, if you manage to delete these files timely, they will not be bale to go into effect, causing more damage. Initially, these .dlls can circumvent removal of existing security tools’, delete processes, enable in-process objects, allow the activity of browser helper objects, duplicate themselves into multiple system’s locations, and can even implement a rootkit to make Trojan.Yenfhur.A removal nearly impossible. What is more, these files could potentially expose security loopholes for much more devious infections to attack, and these could be much more difficult to have removed.

You should not delete Trojan.Yenfhur.A with chosen manual removal techniques, unless you are an expert Windows user, because this application is strengthened by rootkit implementation. On the other hand, every single one of Windows users will be able to remove the obnoxious application with automatic removal software. If you face any difficulties with any of these paths, contact us by posting a comment below.

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How to manually remove Trojan.Yenfhur.A

Files associated with Trojan.Yenfhur.A infection:


Trojan.Yenfhur.A DLL's to remove:


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