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Earthnuker

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Posts posted by Earthnuker

    [Python] XOR stream cipher

    in Applications & Coding

    Posted

    hey everyone,

    last weekend i started learning assembler for writing shellcode encoders (and shellcode itself)

    at the moment i'm trying to write an XOR based stream encoder (kinda like RC4 but much simpler)

    the prototype is written in python and it's supposed to work as follows:

    encoding:

    1. take IV xor with first block of data to encode, store result in array

    2. take last block from array xor with next block of data, append result to array

    3. repeat step 2 until end of data

    decoding:

    1. take IV xor with first block of encoded data , store result

    2. take result xor with next block of data, store result

    3. repeat step 2 until end of data

    http://pastebin.com/X9TKcLMm this is the source code

    "test" is the IV

    and "targets" is the data to encode

    now my problem is that the decoding function is not working as intended, it fails to properly decode the encoded data

    anyone got an idea where the error might be?

    Thanks in advance,

    Earthnuker

    (kind Of) Advanced Python Backdoor

    in Applications & Coding

    Posted

    Hi everyone,

    some weeks ago a friend of mine told me that he wanted to write a program similar to metasploit's meterpreter, but in Delphi

    so i picked the idea up and told him I'd try to do it in python since I'm quite good with python

    after a few days of work i had the first prototype up and running and continued to work on it and fix bugs

    so now i present to you:

    Project Infinity: Ragnarok backdoor 0.3b

    http://pastebin.com/DDqGy6yG

    Features:

    -bind and reverse mode

    -can be easily compiled with pyinstaller or py2exe

    -no additional python modules required

    -easily extensible

    -password protected access

    -undetected by AV

    -can execute shellcode without writing to disk

    -can delete itself from disk

    -doesn't need an external client(yet), you can connect using netcat

    -can execute python snippets on the fly

    -file up and download(download writes hex'd file to socket)

    ToDo:

    -make it run on windows without crashing

    -implement encrypted communication and write a client program

    -add an option to define functions on the fly

    if you have questions or ideas feel free to post them

    Convert Exe File To Shellcode And Run In Memory?

    in Applications & Coding

    Posted

    yeah, the title pretty much says it,

    is it possible to convert and exe file to shellcode that can be run in memory/inserted into a metasploit executable template?

    here's he python code i use to load and run the shellcode

    WARNING! IT CAN CRASH YOUR SYSTEM ( 64-bit ) ONLY WORKS ON 32-bit:

    from ctypes import * #load ctypes module
import sys,binascii # import binascii to decode shellcode
o=open(sys.argv[1],"r") # open file to read encoded shellcode from
shellcode=binascii.unhexlify(o.read()) # write decoded shellcode to variable
cast(create_string_buffer(shellcode, len(shellcode)), CFUNCTYPE(c_void_p))() # run it

    now i want to use an exe file as payload to run it from RAM

    here's the code of the encoder:

    import sys,binascii
i=open(sys.argv[1],"rb")
o=open(sys.argv[1]+".hex","w")
o.write(binascii.hexlify(i.read()))

    the problem is when i feed it an encoded exe file it won't work:

    
C:\Dokumente und Einstellungen\User\Desktop>test.py out.txt
Traceback (most recent call last):
  File "C:\Dokumente und Einstellungen\User\Desktop\test.py", line 5, in <module>
    cast(create_string_buffer(shellcode, len(shellcode)), CFUNCTYPE(c_void_p))()

WindowsError: exception: access violation writing 0x00001101

    i also checked if it was possible to use metasploit to convert an exe to shellcode, but i didn't find anything :(

    so i'd like to convert the exe to "real" shellcode that can be run from RAM

    any ideas?

    Python Multihash Cracker

    in Applications & Coding

    Posted · Edited by Earthnuker

    hey evryone

    i wrote a multi hash cracker in python and thought i'd share it with you guys :)

    features:

    -can crack md5,sha1,sha224,sha256,sha384 and sha512

    -dynamically changes charset while bruteforcing(faster in some cases)

    -can do rounds e.g. md5(md5('test'))

    -wordlist and bruteforce support

    -automatically does bruteforce when wordlist fails

    -autodetects hash-type

    -multi rounds support (first hash pw with 1 round, then check against hash, then with 2 rounds, etc...)

    -maximum password lenghth with bruteforce is 20

    -cross platform, only needs python 2.7

    -written by me and my brother(mostly by me)

    planned features:

    -multithreading

    http://pastebin.com/nCgMVRXs

    What you carry in your hakpack

    in Everything Else

    Posted

    In my hakpack is (depending on where i'm going):

    asus eeepc with backtrack4 R2

    asus laptop wiht win7

    Alfa USB-wlan adapter + 2m piggytail+ big antenna+small antenna :D

    usb-mouse

    headset

    ethernet cable

    and in my pockets i have:

    16GB usbstick with live linux

    1TB samsung S2 external HDD with/for backups

    archos 3 vision 8gb mp3 player with lots of music(mostly metal)

    senheiser earbuds(currently broken)

    gp2x caanoo game console(also broken)

    wallet+keys

    Introduce yourself

    in Everything Else

    Posted

    Hi everyone

    Name: Daniel aka Earthnuker

    Fav. Game: minecraft :P

    Fav. OS: Linux and Windows

    Nationallity: German

    Sex: male

    Fav. Band: everything that's Metal \m/, Buckethead

    Hobbies: listening to music,programming,chatting,minecraft...

    Languages:German,English,Spanish(not so good),Python

    if you have question just ask me :)

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