| |  | |           | |                 | |                 | |
| |  | | ___   ___ | |  ___  ___  ___  | |      ___    ___ | | __ ___  _ __
| |  | |/ __| / _ \| | / _ \/ __|/ __| | |     / _ \  / __|| |/ // _ \| '__|
| |__| |\__ \|  __/| ||  __/\__ \\__ \ | |____| (_) || (__ |   <|  __/| |
 \____/ |___/ \___||_| \___||___/|___/ |______|\___/  \___||_|\_\\___||_|

Randomware-like sample that can be easily modified and used. For educational purposes.

Features

• Highly portable. Should run on Windows/Linux/BSD.
• Opens a webpage to notify the user.
• Sends encryption key to a server.
• Store any necessary files in a zip archive appended to the executable.
• Uses RSA + AES128/256 CBC PKCS7.
• Works offline.

Usage

This software lacks several components that require a significant amount of work to implement. This is left upto the reader to do.

• Remove the safety pin.
• Compile the software.
• Create a webserver capable of processing requests from useless locker.
• Generate a private/public key pair using openssl or similar.
• Create zip archive of all the files in the required hierarchy.
• Append zip archive onto executable.

Appending the zip archive

Follow the instructions in the store README.

Legal

This is a fun peice of software that I enjoyed writing. I learned a few things while writing this and I hope that others can too. Please do not use this for ransomware or otherwise malicious purposes. This is only meant to be used for educational purposes.