As with most things I thinks its a slightly modified version of a standard font.
From memory(its too late/I'm too lazy to look right now) Arial black seems pretty damn close, not sure if the kerning needed adjusting much or not but I'm sure thats what we use.
What do you need it for? Does it need to be an exact match?
Generaly you'll find, "close enough" and no one will be any the wiser anyway.
Regards
Lee