Interesting. I went on the link, used Chrome, and no errors for me. If you go into Downloads in Chrome (Press CTRL+J), you can allow the file to be kept. But it's weird you are getting this virus warning, nothing for me over here.
There is nothing for qbt to "resolve." If you are downloading from a reliable source, like, HERE, it's a false positive. You simply have to override your AV and install the program.