QuasarRAT – Open-Source Remote Administration Tool for Windows

Quasar is a fast and light-weight remote administration tool coded in C#. Providing high stability and an easy-to-use user interface, Quasar is the perfect remote administration solution for you.


  • TCP network stream (IPv4 & IPv6 support)
  • Fast network serialization (NetSerializer)
  • Compressed (QuickLZ) & Encrypted (AES-128) communication
  • Multi-Threaded
  • UPnP Support
  • No-Ip.com Support
  • Visit Website (hidden & visible)
  • Show Messagebox
  • Task Manager
  • File Manager
  • Startup Manager
  • Remote Desktop
  • Remote Webcam
  • Remote Shell
  • Download & Execute
  • Upload & Execute
  • System Information
  • Computer Commands (Restart, Shutdown, Standby)
  • Keylogger (Unicode Support)
  • Reverse Proxy (SOCKS5)
  • Password Recovery (Common Browsers and FTP Clients)
  • Registry Editor



  • .NET Framework 4.0 Client Profile (Download)
  • Supported Operating Systems (32- and 64-bit)
    • Windows XP SP3
    • Windows Server 2003
    • Windows Vista
    • Windows Server 2008
    • Windows 7
    • Windows Server 2012
    • Windows 8/8.1
    • Windows 10



Open the project in Visual Studio and click build, or use one of the batch files included in the root directory.

Batch fileDescription
build-debug.batBuilds the application using the debug configuration (for testing)
build-release.batBuilds the application using the release configuration (for publishing)


Free, Open-Source Remote Administration Tool for Windows: QuasarRAT Download

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