redirect-to - porn spam! vB3

[GrantHorizons]

Somewhere, somehow, there are over 100 "redirect-to" porn spam links on my site (500,000+ posts). We moderate carefully, but obviously don't see everything.

To clarify - somewhere - I believe - there is an innocuous word that is a link, and vB3 automatically makes a "redirect-to" link of it. Times 100 or so...

So, I clearly need to find them! However, google search - that I use for search - only finds the redirect - but doesn't show me what page the link is ON. Forum search finds nothing at all.

Anyone have any ideas how to find them?
Note that MySQL is not my forte.

Thanks for any ideas, and I hope everyone had a great Christmas, and best wishes for a happy and healthy 2022!