Trojan.dorkbot.ed

This morning I ran my weekly Malwarebytes on demand scan (used as a back up to NIS 2014) and it detected trojan.dorkbot.ed.  This was detected in Norton Utilities 15, the exact path being C:\Programfiles(x86)NortonUtilities 15\RMScrn.exe.  Before removing to quarantine I ran a full system scan with NIS 2014 and it did not detect the trojan.  Ran Norton power eraser and it didn't detect the trojan either.  Ran Malwarebytes again, it detected the trojan in the same place and I quarantined it.  I have no real experience with this sort of thing and I wouldn't expect  Norton Utilities to be infected.  I've been using it for quite some time along with NIS.  Additionally, I would have thought that NIS or Norton power eraser would have caught it.  Any help here would be greatly appreciated.