What does it mean

[Dmitry A. Bondareff]

Hello hackers!

On my system which connected to Internet I''ll see many processes like (sh):
# ps axu | more
USER    PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED      TIME COMMAND
root  59548  1,0  0,0     0    0  ??  Z    11:00     0:00,00  (sh)
root  59588  0,0  0,0     0    0  ??  Z    11:02     0:00,00  (sh)
root    185  0,0  0,0     0    0  ??  Z     2июл04   0:00,00  (sh)

WHAT IS IT ??

Regards,
Dmitry.