DaveGrohl (software)

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Developer(s) davegrohl.org
Stable release 2.1 / November 30, 2012 (2012-11-30)
Operating system Mac OS X
Type password cracking
License Freeware
Website http://www.davegrohl.org

DaveGrohl is a brute-force password cracker for Mac OS X. It was originally created in 2010 as a password hash extractor but has since evolved into a standalone or distributed password cracker. It supports all of the standard Mac OS X user password hashes (MD4, SHA-512 and PBKDF2)[1][2][3] used since OS X Lion and also can extract them formatted for other popular password crackers like John the Ripper.[4] The latest stable release is designed specifically for Mac OS X Lion and Mountain Lion.

Attack Methods[edit]

DaveGrohl supports both dictionary and incremental attacks. It may also run in distributed mode[5] which allows it to use multiple computers to attack the same password hash. A dictionary attack will scan through a number of pre-defined wordlists while an incremental attack will count through a character set until it finds the password. When in distributed mode, it uses Bonjour to find all the server nodes on the local network and therefore requires no configuration.


  1. ^ http://www.defenceindepth.net/2011/09/cracking-os-x-lion-passwords.html
  2. ^ http://blog.securemacprogramming.com/2012/07/password-checking-with-commoncrypto/
  3. ^ http://www.hackmac.org/tutorials/crack-os-x-mountain-lion-passwords/
  4. ^ http://www.openwall.com/lists/john-users/2011/09/20/3
  5. ^ http://davegrohl.org/faq.html

External links[edit]

See also[edit]