Janus - C++ Reverse Shell

Introduction

Janus is a simple reverse shell developed in C++ that can establish a reverse tcp connection to the attacker from the victim's computer. The attacker can after that execute commands on the victim's computer. Janus has the objective to be fud (fully undetectable) in the future, it has currently a low detection rate on virustotal.

Warning: Janus is for now only compatible with Windows OS. To build it and use it, you need a C++ compiler and CMake installed on your Windows system.

Features

Janus currently implements the following features:

• Clone on the victim's computer in the AppData folder
• Remote command execution via reverse TCP
• Background launch
• Persistence : the backdoor start at every startup of the victims computer

Installation & build (from source)

To build Janus from source, at first clone the repo and navigate to the directory:

git clone https://github.com/Omikrone/Janus.git
cd Janus

Once in the directory, you have to compile the project with CMake. But before that, you may want to change the host ip and the port used by the backdoor. To do that, simply edit the first lines of client.cpp and server.cpp so it uses your preferences instead of localhost. Once done, you can compile the project with:

mkdir build
cd build
cmake ..
cmake --build .

Usage

Once the project is built, you should have two executables in the build directory: client and server. You can then upload the client executable to the victim's computer and launch it. On your own computer, you have to launch the server executable to listen for incoming connections.

AV detection

Here is the current detection rate on virustotal for Janus: I will try to get it fud for the next update.

Disclaimer and further information

This program is for educational purposes only! I take no responsibility or liability for own personal use.