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.