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Pintool3

pintool3 is an improved version of the pintool2.py script written by sebastiendamaye, available here (https://github.com/sebastiendamaye/pintool2).

I migrate it to python3, polish its coding style and improve it with new features.

This tool can be useful for solving some reversing challenges in CTFs events. Implements the technique described here (http://shell-storm.org/blog/A-binary-analysis-count-me-if-you-can/).

Configuration

You must configure your PINBASEPATH inside the script:

PINBASEPATH = 'change me'
PIN = PINBASEPATH + 'pin'
INSCOUNT32 = PINBASEPATH + 'source/tools/ManualExamples/obj-ia32/inscount0.so'
INSCOUNT64 = PINBASEPATH + 'source/tools/ManualExamples/obj-intel64/inscount0.so'

Help

usage: pintool3.py [-h] [-e] [-l PASSLEN] [-c CHARNUM] [-b EXCHAR] [-a ARCH] [-i INITPASS] [-s SYMBFILL] [-d EXPRESSION] [-r] filename

positional arguments:
  filename       Program for playing with Pin Tool

options:
  -h, --help     show this help message and exit
  -e             Study the password length, for example -e -l 40, with 40 characters
  -l PASSLEN     Length of password (Default: 10 )
  -c CHARNUM     Charset definition for brute force (1-Lowercase, 2-Uppecase, 3-Numbers, 4-Hexadecimal, 5-Punctuation, 6-All)
  -b EXCHAR      Add characters for the charset, example -b _-
  -a ARCH        Program architecture 32 or 64 bits, -a 32 or -a 64
  -i INITPASS    Inicial password characters, example -i CTF{
  -s SYMBFILL    Symbol for complete all password (Default: _ )
  -d EXPRESSION  Difference between instructions that are successful or not (Default: != 0, example -d '== -12', -d '=> 900', -d '<= 17' or -d '!= 32')
  -r             Start in reverse order

Examples:
  ./pintool3.py -l 30 -c 1,2,3 -b _{} -s - -a 32 test/baleful
  ./pintool3.py -l 37 -c 4 -i CTF{ -b }_ -s - -a 32 -d '=> 1200' test/reverse400
  ./pintool3.py -c 1,2,3 -b _ -s - -l 28 -d '=> 6000' test/wyvern
  ./pintool3.py -r -l 32 -c 1,2,3 -b _{$} -s - -a 32 test/01f47d58806a8264cd4b2b97b9dabb4a
  ./pintool3.py -l 23 -c 1,2,3 -b _@! -s - -d '== 16' test/main

Examples

Baleful - picoCTF 2014

Reverse 400 - Hack You 2014

wyvern 500 - CSAW CTF 2015

loginme - XDUKY CTF 2022

TODO

  • CodCode Cleanup

  • Error Control

  • More logical logger

License

MIT