[Shasown]

System restore will only remove the symptoms of a virus if the file(s) that have been infected has been altered according to the restore records. It doesnt remove viruses so the virus could still be on the computer waiting to be reactivated.

When using system restore it can also remove other programs settings and installations you have installed or changed since the restore you use

You are better off using either malwarebytes or Trend housecall to remotely remove it.