QuasarLab

QuasarLab is a Windows WPF lab tool for testing Quasar-RAT servers in a controlled environment.

It helps you check if a target test server is online, connect one or more lab clients, monitor connection status, inspect packet traffic, and review message logs.

For authorized lab testing only. Use it only with servers and networks you own or have permission to test.

Demo

Watch the demonstration video

Features

• Check if a target test server is reachable.
• Create single or multiple lab client connections.
• Monitor active, lost, and reconnected clients.
• Use editable client profiles for host, port, identity, tag, key, and signature values.
• View message logs from the app.
• Inspect inbound and outbound packet details.
• Import release-style profile data from JSON.

Use Cases

• Testing if a Quasar-compatible server is up.
• Simulating multiple lab clients.
• Checking reconnect behavior.
• Reviewing TLS/protobuf protocol traffic.
• Light stress testing in a private lab.

Requirements

• Windows
• Visual Studio 2022
• .NET Framework 4.8.1 Developer Pack

Build

Open QuasarLab.sln in Visual Studio and build the solution.

Responsible Use

QuasarLab is made for research, QA, and private lab testing. Do not use it on servers, systems, or networks without permission.

For disclosure guidance and contribution boundaries, see SECURITY.md.