How DirBuster Works

From OWASP

Overview

The basic principal of how DirBuster works is with the use of "Fail Cases". This means that DirBuster will attempt to determine what the actual "Fail Case " is before testing. DirBuster will then determine something (a file or directory) to be present if the test executed returns a result different from the "Fail Case". This a very basic example of what DirBuster does. More detailed information is given below.