Quasar RAT – Windows Remote Administration Tool


Quasar is a fast and light-weight Windows remote administration tool coded in C#. The usage ranges from user support through day-to-day administrative work to employee monitoring.

Quasar RAT - Windows Remote Administration Tool


It aims to provide high stability and an easy-to-use user interface and is a free, open source tool.

Features of Quasar RAT Windows Remote Administration Tool

The main features that can be found in Quasar are:

  • TCP network stream (IPv4 & IPv6 support)
  • Fast network serialization (Protocol Buffers)
  • Compressed (QuickLZ) & Encrypted (TLS) communication
  • UPnP Support
  • Task Manager
  • File Manager
  • Startup Manager
  • Remote Desktop
  • Remote Shell
  • Remote Execution
  • System Information
  • Registry Editor
  • System Power Commands (Restart, Shutdown, Standby)
  • Keylogger (Unicode Support)
  • Reverse Proxy (SOCKS5)
  • Password Recovery (Common Browsers and FTP Clients)

Using Quasar Windows Remote Administration Tool

1. Download Quasar

Usually most users want the stable version of Quasar, which can be found on the releases page. Bleeding edge versions with latest features, improvements and bug-fixes can are located at the CI server. These builds should be used with caution as they may contain critical bugs.

2. Building a Client

After starting Quasar.exe for the first time, you will need to build a client for deployment. Use the button Builder at the top of the Quasar application to start the client configuration. After configuring the client for your needs, click the Build button and choose a location to save the built client.

3. Connecting the Server and Client

The standalone client from the previous step has to be deployed on the computers of the users. Simply executing the client on the computers is enough. The client will take care of the installation, startup, etc… Once installed the client will try to connect to your Server on the specified host-name and port. It might be necessary to set up port forwarding to your local Server if it is behind a firewall in your network. You can use automatic forwarding with UPnP in the settings if it’s being supported by your firewall/router.

You can download Quasar here:

Quasar.v1.3.0.0.zip

Or read more here.

Posted in: Hacking Tools

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One Response to Quasar RAT – Windows Remote Administration Tool

  1. Wgrener June 28, 2020 at 9:04 pm #

    how can I join this hacking program I have access to things but I needs a hacking lecture.