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Welcome to the SugarFree wiki!

Introduction

SugarFree is an open-source tool designed to analyze and reduce the entropy of a provided PE file.

SugarFree uses two different techniques (strategies) to reduce the entropy of a PE file:

• zero: Appends null bytes (0x00) to the end of the file, increasing its size while lowering entropy.
• word: Appends random English words in byte format to the end of the file, increasing its size while lowering entropy.

The following list explains the meaning of each SugarFree command:

• info: Calculates the entropy of a PE file and its sections.
• free: Lowers the overall entropy of a PE file.

SugarFree is written in Golang, a cross-platform language, enabling its use on both Windows and Linux systems.

Installation

You can use the precompiled binaries, or you can manually install SugarFree by following the next steps:

1. Clone the repository by executing the following command:

git clone https://github.com/nickvourd/SugarFree.git

2. Once the repository is cloned, navigate into the SugarFree directory:

cd SugarFree

3. Install the third-party dependencies:

go mod download

4. Build SugarFree with the following command:

go build SugarFree