Cyber security

Donut-Decryptor : Unmasking Binary Secrets

Navigating the maze of binary obfuscation? Meet the “Donut-Decryptor”, a tool tailored to decode the elusive Donut obfuscation. Dive in to unravel its capabilities and bring clarity to concealed code.

Beyond mere decryption, it’s a spotlight in the shadowy corridors of cybersecurity. A must-have for those battling coded enigmas.

A configuration and module extractor for the donut binary obfuscator.

Description

donut-decryptor checks file(s) for known signatures of the donut obfuscator’s loader shellcode.

If located, it will parse the shellcode to locate, decrypt, and extract the DONUT_INSTANCE structure embedded in the binary, and report pertinent configuration data.

If a DONUT_MODULE is present in the binary it is decrypted and dumped to disk.

Requirements

donut-decryptor currently requires the separate installation of the chaskey-lts module.

Installation

You can install donut-decryptor for usage by navigating to the root directory of the project and using pip:

cd /path/to/donut-decryptor
python -m pip install .

Following installation, a command-line script is available. For usage instructions use:

donut-decryptor --help

Examples

The files present in the samples directory are 7z files password protected using the password `infected“, all of which contain donuts which can be decoded using this script.

Varshini

Varshini is a Cyber Security expert in Threat Analysis, Vulnerability Assessment, and Research. Passionate about staying ahead of emerging Threats and Technologies.

Recent Posts

How to Install Docker on Ubuntu (Step-by-Step Guide)

Docker is a powerful open-source containerization platform that allows developers to build, test, and deploy…

13 hours ago

Uninstall Docker on Ubuntu

Docker is one of the most widely used containerization platforms. But there may come a…

13 hours ago

Admin Panel Dorks : A Complete List of Google Dorks

Introduction Google Dorking is a technique where advanced search operators are used to uncover information…

2 days ago

Log Analysis Fundamentals

Introduction In cybersecurity and IT operations, logging fundamentals form the backbone of monitoring, forensics, and…

3 days ago

Networking Devices 101: Understanding Routers, Switches, Hubs, and More

What is Networking? Networking brings together devices like computers, servers, routers, and switches so they…

3 days ago

Sock Puppets in OSINT: How to Build and Use Research Accounts

Introduction In the world of Open Source Intelligence (OSINT), anonymity and operational security (OPSEC) are…

3 days ago