hashcat – Multi-Threaded Password Hash Cracking Tool
hashcat claims to be the world’s fastest CPU-based password recovery tool, while not as fast as GPU powered hash brute forcing (like CUDA-Multiforcer), it is still pretty fast.

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You can download hashcat here:
hashcat-0.46.7z
Detailed documentation and command line switches can be found here – hashcat.
Or read more here.
Gloss