How to kill the psybnc process:
user@sisrv:~/psybnc$ ps x
PID TT STAT TIME COMMAND
44354 p0 S 0:00.03 -su (bash)
31264 p0 S 0:00.02 ./psybnc
21200 p0 R+ 0:00.00 ps x
user@sisrv:~/psybnc$ kill -9 31264
user@sisrv:~/psybnc$
note: first you find the psybnc PID, type: ps x
The PID number is on the left hand side.
As you can see on the example above, the PID number is 31264
Type: kill -9 PID
or Type: kill -9 31264
Run the psybnc proces again. using the command: ./psybnc
e.g:
user@sisrv:~$ cd ~/psybnc
user@sisrv:~/psybnc$ ./psybnc