Trojan Zefarch unable to rid PC of this

On a daily basis NIS 2011 prompts me to reboot becuase it has found the Trojan Zefarch. I reboot and all is fine for a while then it shows the Zefarch Trojan is back. I have looked throught the registry but do not see any of the entries that are supposed to be there if you have this Trojan. It keeps creating the DLL under C:\Users\Robert\AppData\Local. When I reboot the dll is gone, but the Trojan keeps coming back.

 

I want to get rid of this for good but NIS 2011 doesn't seem to do it.

 

Can someone assist ?

 

Thank You