A simple yet powerful DoS client for the Mac OS X based on SlowLoris
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Cyphon.xcodeproj Workspace Apr 7, 2017
Cyphon Interface Feb 8, 2018
Cyphon.zip Executable May 29, 2017
README.md update Apr 29, 2018
slowloris.pl Payload Apr 7, 2017



A very simple yet powerful Low Bandwidth DoS (Denial of Service) tool written for Mac OS X (Friendly GUI) based on RSnake's Slow Loris.

You can use this tool to test for DoS vulnerabilities on your server or to experiment it's potential.

Built with

  • Xcode - Cocoa, Applescript

Code Example

 do script "mkdir -p ~/Source && cd ~/Source/"
 do script "curl -O https://raw.githubusercontent.com/abila5h/Cyphon-DoS/master/slowloris.pl" in window 1
 do script "chmod +x slowloris.pl" in window 1
 do script "./slowloris.pl -dns  " & currentTextFieldText & " -port "  & portFieldText &  " -timeout " &timeoutFieldText & " -num "& packetFieldText in window 1


I decided to code an executable OSX version for Mac OS users as there are little server load testers out there for Mac OS.

SlowLoris seemed to be the best solution for a Mac DoS tool due to its ability of being a low bandwidth yet poisonous HTTP client by using a single IP address to send several partial HTTP requests.



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Download and demonstration

Download - Hold down the Control key when launching the Application.

Youtube Video

Mitigating the attacks

  • Use DDoS mitigation services

    Project Shield - Google's Free DDoS mitigation Service

  • Increase the number of clients your server can host.