Hello and welcome, the tools needed to remove this are available under supervision here in our Malware Removal Forum. It has been my experience that this is the only way to clear this up.
Please follow the instructions in this tutorial for posting a HijackThis Log. Preparation Guide for use before posting a HijackThis Log
After you have created it,post the log here HijackThis Logs and Malware Removal
and NOT in this topic,thanks.
Click on New Topic and copy/paste the entire log into the reply. Give it a relevant title.
Once you have posted the log DO NOT reply to it or change it until contacted or advised to do so by the HJT Team tech.
Should you have any other questions about this ask those here.