My Fritz Box does not reply in that way. How come you indicate that _all_ Fritz Box Modems have been hacked and how do I know if I am affected? Apparently I'm not.
It's how the mechanism of DNS suffices works. Especially on Windows, because Windows rewrites all DNS requests with the suffix (even simple requests like google.com). To me it's surprising that somehow not everyone is affected. I only learned that in the comments here.