How can process in STOP state consume 200% CPU?

[Yuri]

I got VirtualBox process in a strange state. It has the status STOP but 
shows by top as consuming 200% CPU for a very long time.
How is this possible and what does this mean? Process time stays at 0:00 
TIME. kill -9 doesn't kill it.

   PID USERNAME      THR PRI NICE   SIZE    RES STATE   C   TIME    CPU 
COMMAND
  9390 yuri            3  44    0   508M   246M STOP    3   0:00 200.00% 
VirtualBox
<...>

8.2-STABLE

Yuri