Nee

am facing a similar problem ....but if i try to Start > Run... typing in "msconfig"...the system restarts...
mayb the virus has some code in it..tht restarts my comp on running msconfig....

wht do i do???

It's not necessarily a program that is causing that to be loaded. Check in the registry keys to see if that program is being run on startup. If you don't know where it might be in the registry then click Edit > Find... and search for the program name (KesenjanganSosial.exe). If you find anything related to it, delete it (but back the registry up first ).
The alternative is that is is being loaded as a startup process. Check by going to Start > Run... typing in "msconfig". Check the Services tab to see if it is listed there and set to start on boot or something. Ten check the Startup tab, and look down the Command column. This basically lists the files being run at startup. Just look for C:\Windows\KesenjanganSosial.exe (it may get abbreviated to something like Kesenj~1.exe) and delete it. It will also give you the registry key to delete to.

I can't think of any free antivirus software better than the ones you've already used, but Symantec offer removal tools for a lot of viruses that are free. They basically go through the process I explained, but automatically for you. See if the virus is listed in their free removal tools here.