Same problem
I too am experiencing this problem, and I have no idea how this file could have infected my system. I'm not ignorant to the realm of computer security and am even referred to as paranoid considering the different layers of security I've deployed on my system.
Anyway, I followed the advice given above and have disabled the process from restarting at boot. The problem I'm having though is in actually deleting the file itself.
Following the information given to me via MSCONFIG, I determined that on my system the file is resident at C:\Windows\System32\groupmanager.exe However, when I browse to that location (or even do a full system search) there is no such file with that name listed (Anywhere on the system).
I thought perhaps the file was marked as "hidden" or "protected system file" so I made those file types viewable and still no joy.
Does anyone have any idea why I cannot seem to "view" this file in the location it resides as per MSCONFIG?
Thank you in advance,
Melchiah.