I think there will have to be some collaboration from universities (and companies). Some not-so-refined ideas would be something like this (admittedly some problems with non-academic submissions):

- Submission requires a known affiliated email address (seems arxiv does this)

- Given a fake paper, the affiliated institute is warned and added to a known list, author(s) banned from submitting

- Second occurrence to appear on the list bans the university from submitting

"Submitting" referring to any network of conferences/journals that decide to opt into this.
This will very quickly stop authors from doing it, and universities will surely fire anyone who tries that.

For context, I am thinking of the github issue with (washington?) researchers putting bad commits/PRs