win32/qhost trojan and a variant of win32/agent.NSH.trojan

I have nod antivirus installed, updated, windows 7

my nod32 can't remove win32/qhost trojan and a variant of win32/agent.NSH.trojan.
the file hosts (windows/system32/drivers/etc/hosts) is moved each second in the quarantine, but with no effect.
How can I remove this virus and what informations do you requiare in order to help me?
Thank you!

 

Many types of malware are having system components like system drivers or services which can prevent cleaning up of your system.
If you are a client of ESET you can send SysInspector log(How to create SysInspector Log) to ESET Support but if you are not the client, then you can try installing Malware Bytes(http://www.malwarebytes.org/) and try to remove these trojans by this suite.

 

I already tried malwarebytes...with no success.

 

Follow these instruction:
http://www.malwarebytes.org/forums/index.php?showtopic=9573

When you finally post all logs and information about your problem one of these guys will help you:
http://www.malwarebytes.org/forums/index.php?showtopic=12264

 

Hello gadry,

If you have any type of infection that is not being removed, submitting a support case is probably the best course of action.

http://www.eset.com/support/contact.php