Thread:Project:Support desk/MediaWiki being hacked?

I've tried to find help on this but I haven't found anything - so please forgive me if there is information elsewhere?

I started getting emails yesterday about a number of new registered users. I logged into the wiki and also noted many of these users have put in garbage as pages. It almost seem like some sort of bot or program is doing this.

I don't think I want useless pages being put up, so I'd like to get rid of them. The administrator tools don't seem to have a way to delete pages or users in bulk, because there's now about 50 of them, and none are contributing content intended for the wiki.

Any thoughts? I'd like to block the activity if it's possible.

Thanks!