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Which tool is most recommended for brute forcing Windows LM and NTLM hashes for the purpose of locally resolving a locked computer which cannot be logged into, and boasts a 99% success rate?
Hashcat (ocl or CUDA)
THC-Hydra
John the Ripper (JTR)
OPHcrack
OPHcrack is the correct answer. THC-Hydra is an online password brute-force tool. John and Hashcat are both capable of attacking LM and NTLM hashes, but cannot break a locked system because it must be run from the operating system. OPHcrack, on the other hand, is loaded from a Live CD or USB and uses pre-compiled rainbow-tables to crack Windows hashes. Additionally, none but OPHcrack can claim to have a 99% success rate.
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