BroncoDeobfuscation.py

#! /usr/bin/env python
# BRONCO~1.WSF code deobfuscation

import sys
import os

def usage():
    print "Usage: " + os.path.basename(sys.argv[0]) + " <file> <output_file>"

def main():
    #print get_text(binarize(read_file(sys.argv[1])))
    data = get_text(binarize(read_file(sys.argv[1])))
    write_file(sys.argv[2], data)
    

def read_file(file):
    """ Open the file with the raw value and load into a variable. """
    with open(file, 'r') as r_file:
        data = r_file.read().replace('\n', '')
        r_file.close()
    return data

def write_file(file, data):
    """ Write result to an external file. """
    with open(file, 'w') as w_file:
        w_file.write(data)
        w_file.close()
    
def binarize(data):
    """ Converts simbols into digits and returns a string array
        with binary values.
    """
    result = data.replace('{', '0')
    result = result.replace('}', '1')
    result = result.split('_')
    return result
    
def get_text(data_array):
    """ Convert each array element into his char representation and
        appends it into a variable. Then returns the complete text.
    """
    result = ''
    for element in data_array:
        result = result + chr(int(element, 2))
    return result
    
if __name__ == '__main__':
    if len(sys.argv) < 3 or len(sys.argv) > 3:
        usage()
    else:
        main()