WkuFind is a very old executive, which was part of "Works"., and, I understand, Picture It. If you still have remnants of either, remove them. Since Works became obsolete, this file has been used to transfer Viruses to your computer, and is, of course, undesirable.
You can also look in the task Manager, under the start up Tab, and see if there is anything suspicious there, which you can disable.
Final solution is to run a program like Malwarbytes (Free), which will surely detect it.
https://www.malwarebytes.com/mwb-download/