generate and search pattern string for exploit development 
['debruijn', 'exploit', 'exploit-development', 'python']
generate and search pattern string for exploit development 
 Python Exploit Pattern Tool
Python implementation of Metasploit's pattern generator and search. Should be python 
version agnostic, tested and working with Python 2.7.12 up to and including Python 3.11.1
Starts faster and rolls both tools into one.
No extra dependencies required, works with vanilla python
## Also available
I've made a Go version of this tool available here
git clone git://git.unlogic.co.uk/exploit-pattern
It comes with a few caveats like increased filesize of binary vs execution time, but works in the same way.
## Generate a pattern
    $> pattern.py 100
    Aa0Aa0Aa1Aa1Aa2Aa2Aa3Aa3Aa4Aa4Aa5Aa5Aa6Aa6Aa7Aa7Aa8Aa8Aa9Aa9Ab0Ab0Ab1Ab1Ab2Ab2Ab3Ab3Ab4Ab4Ab5Ab5Ab6A
## Search for a pattern
    $> pattern.py Bf4B
    Pattern Bf4 first occurrence at position 942 in pattern.
    $> pattern.py 0x42346642
    Pattern 0x42346642 first occurrence at position 942 in pattern.
## Optional automatically copy to clipboard
(Thanks to abeljm for this feature)
If your Python installation has the [clipboard](https://pypi.org/project/clipboard/)
package installed, the generated DeBruijin pattern is automatically copied to the system
clipboard when it is generated as well as printed to stdout. If the package is missing,
the copy to clipboard feature is skipped.
NOTE: On KDE 5 there is an issue with klipper and the clipboard package. You may need to manually
run `klipper` in a terminal before running `pattern.py`
## Use it in your own python code
After placing pattern.py in the same directory as your script:
```python
from pattern import pattern_gen
print(pattern_gen(10))
```
or
```python
from pattern import pattern_search
found_at = pattern_search('Bf4B')
```
## Obtaining
Clone the repo, or if you are on a machine without git you can use
    $> curl https://is.gd/xpattern -o pattern.py
or
    $> wget https://is.gd/xpattern -o pattern.py
Or change the `pattern.py` to whatever filename you like
## License
The MIT License (MIT)
Copyright (c) 2014 Sven Steinbauer
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.