Redirect hack

Hi there
I'm using Defender and it seems great. However I've discovered that what looks like it might be a version of what I believe is the WP Pharma hack is running on my site - there are more than a thousand fake redirects pointing at pharmaceutical products, eg I have no idea where or how these redirects are living or how to clean them out. Can Defender help tackle this??

(You can see a full list of the pharma redirects I know about here: but I don't recommend clicking on any of the resulting sites...)