The encryption key is set to delete after the script completes! A collection of write-ups from the best hackers in the world on topics ranging from bug bounties and CTFs to vulnhub machines, hardware challenges and real life encounters. Warning: Be extra careful of running the program as it will modify files. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch? Step 3 A python script to encrypt some files in the directory. The project is composed of two main parts/programs: the server and the ransomware. To install pyinstaller: https://www.pyinstaller.org To Convet .py File to exe : pyinstaller --onefile -w --icon YourIcon.ico Ransomware.py Before Converting File to exe Run : pip install --user --requirement requirements.txt To Decrypt Files : Run DeRansomware.py On line 29 From : To Your Key (example): Program Structure: In order for the program to work from anywhere in the world, the server uses PyNgrok to tunnel it and make the server reacheable from evrywhere. It is the end users responsibility to obey all applicable local, state and federal laws. For mitigation, this ransomware has Never trusted the file. Do the following command line to encrypt: Do the following command line to decrypt: Then all your files in your test directory will be encrypted, ZmDfcTF7_60GrrY167zsiPd67pEvs0aGOv2oasOM1Pg=, Then all your files in your test directory will be decrypted, The encryption used is AES 128 bits (CBC), The key used will then be a 32-bit base64 key. Added autodetection on Windows, Linux or macOS. Ransom0 is an open source ransomware made with Python, designed to find and encrypt user data. After running the genKey.py there are 2 files, private.pem and public.pem.Save your private.pem securely. This highlights both the power of Python, but also the the ease of building such a virus. Before you build some program, you must know about what it will be and what it will do. the ransomware is organised in four parts: You need to have python3 installed and configured. NB: As this is simply a PoC for Atomic Red Team, there is no real need to change the keys or other variables. Generates AES key to encrypt local file (hardcoded in PoC). I assume no liability and am not responsible for any misuse or damage caused by this tool and software in general. The encrypted text is sent to the C2 server and displayed for the victim. Learn more. Domain and port for exfiltration (main_v2). GitHub statistics: Stars: Forks: Open issues/PRs: View statistics for this project via Libraries.io, or by using our public dataset on Google BigQuery. A tag already exists with the provided branch name. In a real world scenario, the attacker would have to deliver the key to the victim in order to decrypt the files. Allows recursive encryption of the target tree. The program must encrypt data with the public key, After encryption, the program must remove the original files and change the encrypted file extension with . To install pyinstaller: https://www.pyinstaller.org To Convet .py File to exe : pyinstaller --onefile -w --icon YourIcon.ico Ransomware.py Before Converting File to exe Run : pip install --user --requirement requirements.txt To Decrypt Files : Run DeRansomware.py On line 29 From : Use Git or checkout with SVN using the web URL. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. The project is composed of two main parts/programs: the server and the ransomware 1.Run the server: python3 server.py Before running the ransomware, you'll need to modify a few things in ransom.py: Put the url you've got when you started the server: I recommend running it in a testing directory, otherwise all of your files will be encrypted: Donations are welcome, it'll really help me to continue to maintain this project :), THIS PROJECT IS FOR EDUCATION PURPOSE ONLY, DO NOT RUN IT WITHOUT PERMISSION! In order for the program to work from anywhere in the world, the server uses PyNgrok to tunnel it and make the server reacheable from evrywhere. You signed in with another tab or window. RSA Private key (to be removed). Just a Learner and CTFs Player on a quite night. It's a Fake graphical mode ( the countdown is unlimitted) it's just more cool ! The fernet module ensures that data encrypted using it can no longer be manipulated or read without the key. The updated code demonstrates a typical ransomware flow and it is just one of many ways to perform ransomware encryption. Ensure the path is correct and be wary in running with administrative privileges. The program must show a pop-up message with a countdown timer. If you are using Windows as your Operating System, always turn on the extension view so you can differentiate which executable file or document file. The fernet module of the cryptography package has built-in functions for key generation, encryption of clear-text to cipher-text and decryption of cipher-to-clear text using the encryption and decryption methods respectively. Python executable: python3 RansomWare.pyz -t 5-d dir -e 64 YWFh # OR chmod u+x RansomWare.pyz # add execute rights./RansomWare.pyz aaa # execute file Python module (command line): . python.plainenglish.io Develop the program Step 1 Generate Private & Public Key In the last articles, I have explained how making a python program to generate Private & Public key. ATTENTION! Save your private.pem securely. I have authored articles about what we need to build ransomware. If nothing happens, download Xcode and try again. The program should be an executable file and the icon like a document file. In a nutshell, we are the largest InfoSec publication on Medium. Tested with python 2.7 with pyinstaller 3.6 and python 3.7 with pyinstaller 4.0. Simple Python Ransomware is a simple implementation of a ransomware in Python. It has 129 lines of code, 7 functions and 2 files. Its like other malicious software or computer viruses, but with one purpose to encrypt your data and make a ransom for you. If used, the key will be stored in the same directory as ransomware.py. Here is my directory before running malware: Here is my directory after running malware: We were able to make a python program for encrypting files and changing file extensions. And for the decrypt function, you can use my script before. For specific subirectories, specify the main directory first (ie. python3 ransomware.py --d Downloads/Subdirectory ). Please note that python 3.8 with pyinstaller 4.0 have known issues as this was incompatible with macOS. In the python script you can use this script: So, you can encode your private key, then decode it in the python script. A simple, fully python ransomware PoC using AES-CTR and RSA. Today I will explain to you how to make ransomware and how it works with the python language. The updated code demonstrates a typical ransomware flow and it is just one of many ways to perform ransomware encryption. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Desktop, Downloads etc.). I cannot be hold responsible for any file damage due to running this program on any machine. We had 16 amazing speakers who conducted super valuable and inspiring sessions. Note that the key is the same one received in the email. A tag already exists with the provided branch name. Work fast with our official CLI. If you try to make real ransomware, you are breaking the law and you are going to jail. Final step Build an executable file with auto-py-to-exe, I cant explain more to you, but you could read this article, https://dev.to/eshleron/how-to-convert-py-to-exe-step-by-step-guide-3cfi. Files encrypted on all levels under 'Downloads': [ ! ] The project is built off CryptSky and full credits goes to deadPix3l for his code. The function above is a recursive function for scanning directories and getting a bunch of files listed with paths. Added RSA asymmetric encryption of the AES key. Ransom0 is a open source ransomware made with Python, designed to find and encrypt user data. A simple python ransomware PoC that can be used for Atomic Red Team: ATT&CK Technique: Data Encrypted for Impact (T1486). The program will encrypt ALL files in thetargeted directory and its subdirectories. TLDR: python3 (python2 for Linux/macOS should work), Exfiltrate key back to C2 given domain and port, Ransomware Extension [default: .wasted for WastedLocker]. With my program you could modify for the reverse, decrypting the .L0v3sh3 files. This can lead to poossible file damage or loss. Before you begin, ensure you have met the following requirements: To install Simple Python Ransomware, follow these steps: Simple Python Ransomware is used both to encrypt and to decrypt files. Are you sure you want to create this branch? A tag already exists with the provided branch name. If successfully decrypted you will receive the original plaintext as the result, otherwise an exception will be raised. Ransomware_python A simply python 3 Ransmoware in AES-128 bits HOW TO USE IT Create a test directory at the root of git directory Put some files into this directory Do the following command line to encrypt: python3 chiffre.py Do the following command line to decrypt: python3 dechiffre.py Then all your files in your test directory will be encrypted simple-ransomware.py This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Work fast with our official CLI. The private key is already stored in the attacker's C2 server. Here is my full script, just copy it but dont forget to understand what you write. . Before running the script, head over to the .env file and update the following lines using your own information: After saving the file, you can run the script in the encryption mode by typing: --directory or -d takes as an parameter a string, which is the Location / Folder you are targeting (ie. To simulate a one-click malware, comment and uncomment the following: There is support for multiple paths, add them as such: This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. If letft blank, Simple Python Ransomware will automatically target the Desktop. If successful, the script will: Python-Ransomware saves you 49 person hours of effort in developing the same functionality from scratch. When the ransom is paid, a decryptor is provided. WARNING: This program can damage your files! Here is my checklist, and you can use your own checklist. Files decrypted on all levels under 'Downloads': This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. import os from cryptography.fernet import fernet # first step is to find all files in our current directory and store them in a list files = [] # next we'll use a for loop to add all files in the current directory to our files list for file in os.listdir(): if file == 'ransomware.py' or file == 'thekey.key' or file == 'decrypt.py': continue # we Disclaimer:This tutorial is just for educational purposes, dont try to break any computer except yours. If nothing happens, download GitHub Desktop and try again. There was a problem preparing your codespace, please try again. The main purpose of encoding is to make the public key hard to identify with static malware analysis.So, I encode the public key with base64 and attach that to my code. If nothing happens, download GitHub Desktop and try again. Simple Python Ransomware is build in under 100 lines of code, mostly thanks to packages Cryptography (pip install cryptography) && python-dotenv, but also other packages (argparse, getpass, os, pathlib, smtplib, platform, email). Do not use it for illegal purposes! You signed in with another tab or window. Ransom0 Ransom0 is an open source ransomware made with Python, designed to find and encrypt user data. If nothing happens, download Xcode and try again. There was a problem preparing your codespace, please try again. If nothing happens, download GitHub Desktop and try again. Supports Windows, Linux and macOS. The project is built off CryptSky and full credits goes to deadPix3l for his code. Only used for decryptor. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Step 4 Countdown and message after encrypting done. In order to decrypt the files encrypted before, all you need to do is to pass the cryptographic key as a string to the program, as follows: You can retriev the cryptographic key either from the email sent before, or from the cryptographic_key.key file, if you used the --backup argument. Be careful when you execute the program, make sure you change the directory and try it in your Virtual Machine/Lab. You signed in with another tab or window. The 'Downloads' folder before the encryption. Just copy my script and paste it into the end of the malware script. Use Git or checkout with SVN using the web URL. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Lets scan the file, encrypt that, and then change the extension. Work fast with our official CLI. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Ransom note is shown. 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