Oops!
UBBdev is Down Again today
Thanks ruben
The source IP range is GEO-IP located within Hong Kong which is DDoSing the host directly, again.
I've GEO-IP blocked the IP address range :/ this time, all of Asia.
UBBDEV is hosted on a very old untouched shared server (over a decade old) with limited ram, and is still running PHP 5.4, and a combination of other outdated items which makes it easily susceptible to these things. Hopefully some of today's tweaks will put a cap on it for good this time.