[TheLastSuperman]

Originally Posted by Bill Stuntz

That's why I've spent all day trying to figure this out - I didn't know WHAT to believe, especially since pretty much all the info I've been able to find is from 2013. And I REFUSE to ignore stuff like this.

Will this do anything to help our users who might have been affected? If NOT, what do you suggest?

It depends on what this ends up actually being, heck your pc could be infected it just depends. I'd certainly trace it down and ensure its clean above all else though, try what I mentioned above or rather the short version:

1) Replace all files with fresh files from a newly downloaded vbulletin.zip.
2) Change YUI setting.
3) Now check, fixed?

Edit: You can and probably should run a scan using whatever anti-virus or anti-thisORthat software you have protecting your pc, not sure what you're using but best to scan. *Don't install 2 to 3 of the same things i.e. don't install Norton and Avast or another anti-virus they will conflict. I'd run a scan with your anti-virus program then you can go further from there if you find or feel your pc is infected such as JRT.exe which is Junkware Removal Tool / Spybot Search & Destroy / HiJack This HOWEVER BEFORE WARNED some of these require an experienced user, they can and will allow you to delete pertinent REQUIRED files so don't do anything if you're not familiar with the programs OR if you're not going to take the time to read up on all of this before blindly cleaning something ok? .