zombie

( n.)

   1.  [Unix]  A  process that has died but has not yet relinquished its
   process  table  slot  (because  the  parent process hasn't executed a
   wait(2)   for   it   yet).  These  can  be  seen  in  ps(1)  listings
   occasionally. Compare {orphan}.

   2.  A machine, especially someone's {home box}, that has been cracked
   and  is  being  used  as  part of a second-stage attack by miscreants
   trying  to  mask  their  home IP address. Especially used of machines
   being  exploited  in  large  gangs for a mechanized denial-of-service
   attack  like Tribe Flood Network; the image that goes with this is of
   a  veritable  army  of  zombies  mindlessly  doing  the  bidding of a
   necromancer.

[glossary]
[Reference(s) to this entry by made by: {orphan}]