The SANS Institute's Internet Storm Center (ISC) noted that a bot going by the name "FuntKlakow" has registered on thousands of phpBB forums. Speculating, ISC analyst Marcus Sachs noted that the bot's owner(s) may be preparing to exploit a zero-day vulnerability against the popular php bulletin board software.
Bleeping Computer is I believe Invision Power Board.
And PHP is an entirely different board software.
Though it still not good news at all, for those that use PHP.
We're recommending if forum admins see this user registered that they leave the account but disable it or change the password. That will keep this bot from simply reregistering the user if the account is deleted. Apparently you need to be running the phpBB forum software, not just a forum application that uses the PHP language. The exploit will need an attack vector and its probably doing that through an unpublished hole in the phpBB code (though no one is sure yet).