If you are really paranoid then first, I would try running Hitmanpro which you can download from here
http://www.surfright.nl/en/hitmanpro/ if that still does not find anything, then I would install Comodo internet security from here
https://www.comodo.com/home/internet-sec...curity.php and once it is installed, open it click on tasks, firewall tasks, open advanced settings click on unrecognized files and right click on anything that looks suspicious and click on add to blocked files. If all of this does not find anything, then open Comodo click scan and run a rating scan. Click on show-unknown files and look for the malware their. If you find the malware right click on it, click jump to folder and hold shift while right clicking on the file and hit delete. If it does not let you delete it download Malwarebytes file assassin from here:
https://www.malwarebytes.org/fileassassin/ navigate to the file and delete it.