gmh5225 / venus

A Visual Studio Code Extension agent for Mythic C2

Venus

Venus is a VS Code extension that acts as an agent for Mythic C2. It produces a zipped folder of VS Code extension source code, which currently must be packaged by the operator before delivering to target/test machines manually or via social engineering.

✅ Mythic v2.2+ compatible since v0.2.0
✅ Cross-platform (tested on macOS, Linux, Windows)
⚠️ Doesn't support encrypted payloads yet, always use TLS

Installation

From the top-level directory of Mythic on your C2 server, run the command:

$ sudo ./mythic-cli install github https://github.com/MythicAgents/venus

or to install a specific Git branch of Venus:

$ sudo ./mythic-cli install github https://github.com/MythicAgents/venus branchname

Usage

First, create a Venus Payload in Mythic and download it to your local machine. Make sure you have Node.js installed then get the vsce package and compile your extension like so:

$ npm install -g vsce
$ unzip venus.zip
$ cd venus
$ vsce package

The extension must then be manually installed on target in Visual Studio Code. This can be done from the editor UI or from the CLI with:

$ code --install-extension venus-0.0.1.vsix

Commands

Command	Syntax	Description
current_user	current_user	Uses the os Node.js package to get information about the current user.
exit	exit	Exit a callback.
hostname	hostname	Uses the os Node.js package to return the target's hostname.
pwd	pwd	Prints the current working directory for the agent.
shell	shell [command]	Uses the execSync() Node.js function to execute arbitrary shell commands.

Thank you

Venus icon made by Freepik

Disclaimer

This is an open source project meant to be used with authorization to assess security posture, and for research purposes. The authors of this project are not liable for any damage caused by its misuse.