I would suggest going to the HiJack This forum and follow the instructions on how to post a HJT log and wait for help.
However, you can try running an MBAM scan and see if anything shows up.
Please download Malwarebytes Anti-Malware and save it to your desktop from here.
Double-click on mbam-setup.exe to install the application. When the installation begins, follow the prompts and do not make any changes to default settings. When the installation has finished, leave both of these checked:
Update Malwarebytes' Anti-Malware
Launch Malwarebytes' Anti-Malware
Click the Finish button.
MBAM should start and you will be asked to update the program before performing a scan.
From the scanner tab, select a QUICK SCAN and click the Scan button.
After the scan finishes, click on the Show Results button to see a list of any malware that was found. Make sure that everything is checked, and click Remove Selected. When removal is completed, a log report will open in Notepad. This log is automatically saved and can be viewed by clicking the Logs tab in MBAM. Copy and paste the entire contents of that report in your next post.
MBAM may tell you to reboot your computer to complete the process. If so, then reboot and post the contents of the log afterwards.