Supernova: shellcode encryption tool

Supernova

Supernova is an open-source Golang tool that empowers users to securely encrypt their raw shellcodes. Additionally, it offers automatic conversion of the encrypted shellcode into formats compatible with various programming languages, including:

• C
• C#
• Rust
• Nim

It supports a variety of different ciphers, including:

• ROT
• XOR
• RC4
• AES

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

About Dynamic Variable Name

A dynamic variable name is employed to insert the desired variable name for the shellcode payload. This approach imparts dynamism to the output code by incorporating variables, thereby enhancing the code’s copy-and-paste utility.

Use a dynamic variable name with a -v switch and provide your preferred value.

The default value of the dynamic variable name is shellcode.

Dynamic Variable Name Example

Here is a simple example demonstrating how the dynamic variable name operates.

An attacker uses XOR encryption and utilizes the C# language option in conjunction with the variable setting as value nickvourd :

Outcome:

About Debug

The debug mode is useful if you want to observe the original payload in a selected programming language. To activate this functionality, you need to include the -d option.

Debug Example

Here is a simple example illustrating the functioning of the debug option.

An adversary uses ROT encryption and utilizes the C# language option in conjunction with the debug option:

About Output File

The output option is indicated by the -o switch, followed by the desired value, allowing you to save the encrypted payload into a file.

Output File Example

Here is a simple example illustrating the functioning of the output option.

An attacker uses RC4 encryption and utilizes the C language option in conjunction with the output option and a desired filename:

Install

Copyright (c) 2023 Nikos Vourdas