I've had this virus for about a week. After trying many things that didn't work, I came across this post which did. Thank you!
I've had Avast since before I got the virus. Avast didn't find it on several runs. While Ccleaner didn't find anything, Malwarebytes did. After Malwarebytes deleted the file, all of a sudden Avast realized there was a virus and scheduled the bootscan/cleanup. And now all better.
I'm buying Malwarebytes - it did what many other products did not!