DFP Upload with fine name containing single quote

I am using the File Upload in DFP from SuperSuite on a site where users are able to upload files. I have noticed that sometimes a file containing a single quite is uploaded and the single quote in the filename is changed to \'

So for example, if I start with the file:

Test File'.txt

I end up with:

Test File\'.txt

I am sure most of my users are using Windows so the single quote is a valid character in the file name. The slash is much more of an issue as file names go.

The problem is that I can not tell where this conversion is taking place and I really need to just prevent users from uploading files with a single quote in the name in the first place. I also do not want to end up with the \' in the name. I am ok with just removing the character, I just need to figure out where and possibly what the best way to do this might be.