#!/usr/bin/python
'''
  This is ascii <-> shellcode encode / decoder tool
  programmer : gunslinger_ <yudha.gunslinger[at]gmail.com>
  This was written for educational purpose only. or fucking messing around...
  i.e how to use encode mode :
    --------------------------------------------------------------
    gunslinger@localhost:~/shellcode$ ./shellcodeencdec.py
    shellcode hex encode decoder
    programmer : gunslinger_
    what do you want to do ? encode / decode
    => encode
    Please input data : /bin
    shellcode => \x2f\x62\x69\x6e
    gunslinger@localhost:~/shellcode$
    --------------------------------------------------------------
  i.e how to use decode mode :
    "\x68\x2f\x2f\x73\x68"  // push   $0x68732f2f
    "\x68\x2f\x62\x69\x6e"  // push   $0x6e69622f
    we know 'x68' is push, so drop it...
    "\x2f\x2f\x73\x68"     $0x68732f2f
    "\x2f\x62\x69\x6e"     $0x6e69622f
    --------------------------------------------------------------
    gunslinger@localhost:~/shellcode$ ./shellcodeencdec.py
    shellcode hex encode decoder
    programmer : gunslinger_
    what do you want to do ? encode / decode
    => decode
    Please input data : \x2f\x2f\x73\x68
    hex       =>  2f2f7368
    plaintext => //sh
    gunslinger@localhost:~/shellcode$ ./shellcodeencdec.py
    shellcode hex encode decoder
    programmer : gunslinger_
    what do you want to do ? encode / decode
    => decode
    Please input data : \x2f\x62\x69\x6e
    hex       =>  2f62696e
    plaintext => /bin
    gunslinger@localhost:~/shellcode$ 
    --------------------------------------------------------------
    and we got that is "/bin//sh"
    
  warning ! this is not disassemble tool !
'''
import binascii, sys, time

RED = '\033[31m'
WHITE = '\033[37m'
RESET = '\033[0;0m'

def main():
  print "shellcode hex encode decoder"
  print "programmer : gunslinger_ <yudha.gunslinger[at]gmail.com>"
  print "what do you want to do ? %sencode%s / %sdecode%s" % (RED, RESET, WHITE, RESET)
  q = raw_input("=> ")

  if q == "encode": 
    inputtype = raw_input("Please input data : ")
    print "shellcode => ",
    for encoded in inputtype:
      print "\b\\x"+encoded.encode("hex"),
      sys.stdout.flush()
      time.sleep(0.5)
      print RESET

  elif q == "decode":
    inputtype = raw_input("Please input data : ")
    cleaninput = inputtype.replace("\\x","")
    print "hex       => ",cleaninput
    print "plaintext => ",
    print "\b"+cleaninput.decode("hex")

  else:
    print "wrong answer ! your choice is %sencode%s or %sdecode%s" % (RED, RESET, WHITE, RESET)
    sys.exit(1)    

if __name__ == '__main__':
  main()