use LC 5 for cracking password

LC 5 supports most password-cracking methods and comes in four versions (professional, administrator, site, and consultant—available features vary depending on version).

LC 5 includes a remote agent that lets you centrally manage audits of multiple cross-domain computers and gather all account information at one location. After completing an audit, you can review risk scores, audit method, and character-set or password-length distribution. LC 5 also lets you disable accounts or force users to reset weak passwords