nimos (worm)Is it normal that it is inside Lsass?

I am using an antitrojan, "troyan explore", and it says thay nimus worm is inside Lsass.exe. But it has not created any registry key, as norton or mcaffe say. I say this becauses I have searched very well in my registry, that's why I say that if it is normal for nimos to be inside this one. I have scaned with bit defender, virus chaser, e-scan, panda and these antivirus don't detect this worm.
Is it a worm inside it?
thanks for answering.

 

I have sibmitted the Isass.exe file, and kaspersky says there's nothing there, so that probably it is a false positive as you say, thanks a lot
It was very strange that the antitrojan says it is nimos and it didn't created registry. I think you are right, thanks a lot

 

Just to inform you guys... a new backdoor is spreading named ISASS.EXE (capitals and mind the I in stead of the L) which is putting your pc to sending mails.

Paul