Sosoko is an adware application that has infiltrated your computer without your consent, and most likely without your knowledge until something happens.
Sosoko has the capability of making unwanted changes to your system and settings.  One of the most common changes is to the owner’s homepage.  You may have set it to a certain homepage only to discover that it has been changed without your approval.
It can also change your search settings.  This is not a trusted program and it is highly recommended that the program be removed from your PC.  Spyzooka is a trusted remover and can get rid this program without any issues.  Do not try to manually remove this program, as it can potentially harm your computer.