Hydra is a free application that lets users check for password vulnerabilities on servers or desktop computers. While Hydra is a Linux application, you can install it on a Windows system by using Cygwin, a Linux emulator for Windows. Installing Hydra on a Windows computer running Cygwin requires you to download the installation package and then unpack it and register its files by using specific terminal commands.
Launch the Cygwin application on your Windows system. Download it from cygwin.com and install it on your computer if you have not already done so.
Open your Internet browser in Cygwin and visit THC.org. Click on the download link for the latest version of Hydra and save the TGZ file on your hard drive.
Open the X terminal application within Cygwin and navigate to the folder where you saved the TGZ file by using the "cd" command.
Enter the following command in the terminal window to unpack the TGZ archive:
$ tar tgzfilename
Replace "tgzfilename" with the actual name of the TGZ file you previously downloaded.
Type the next three commands in the terminal window to finish installing Hydra:
$ ./configure $ make $ make install
Press the "Enter" key after typing each command.