It would appear that kiddie scripters are pissing around again. If you're running a b2evo blog I'd advise that you remove (or rename, whichever) /inc/control/imports/

They would appear to mostly just dump an index.html into your blog with their "I'm da nuts" tags, in which case just delete it (you may also need to reupload index.php), but they've also deleted a few blogs and left viruses in others.

You'll also want to check your folders for unknown or changed files and don't forget to change all your database passwords huh

¥