#!/usr/bin/env python3 """ 18.3.3 Hexadecimal and Binary Encoding Source: Chapter_18_Evasion_Obfuscation_and_Adversarial_Inputs Category: evasion """ import random import argparse import sys class BinaryObfuscator: """Binary and hex encoding for evasion""" def to_hex(self, text): """Convert to hex representation""" return ''.join(f'\\x{ord(c):02x}' for c in text) def to_hex_spaced(self, text): """Hex with spaces""" return ' '.join(f'{ord(c):02x}' for c in text) def to_binary(self, text): """Convert to binary""" return ' '.join(format(ord(c), '08b') for c in text) def to_octal(self, text): """Convert to octal""" return ''.join(f'\\{ord(c):03o}' for c in text) def numeric_representation(self, text): """Convert to numeric char codes""" return '[' + ','.join(str(ord(c)) for c in text) + ']' def mixed_representation(self, text): """Mix hex, octal, and decimal""" result = [] for char in text: choice = random.choice(['hex', 'oct', 'dec']) if choice == 'hex': result.append(f'\\x{ord(char):02x}') elif choice == 'oct': result.append(f'\\{ord(char):03o}') else: result.append(f'{{{ord(char)}}}') return ''.join(result) # Example bin_obf = BinaryObfuscator() text = "passwd" print(f"Original: {text}\n") print(f"Hex: {bin_obf.to_hex(text)}") print(f"Hex Space: {bin_obf.to_hex_spaced(text)}") print(f"Binary: {bin_obf.to_binary(text)}") print(f"Octal: {bin_obf.to_octal(text)}") print(f"Numeric: {bin_obf.numeric_representation(text)}") print(f"Mixed: {bin_obf.mixed_representation(text)}") def main(): """Command-line interface.""" parser = argparse.ArgumentParser(description=__doc__) parser.add_argument("--verbose", "-v", action="store_true", help="Verbose output") args = parser.parse_args() # TODO: Add main execution logic pass if __name__ == "__main__": main()