Câu 124: 312-50V13: Certified Ethical Hacker v13

An ethical hacker is attempting to crack NTLM hashed passwords from a Windows SAM file using a rainbow table attack. He has dumped the on-disk contents of the SAM file successfully and noticed that all LM hashes are blank. Given this scenario, which of the following would be the most likely reason for the blank LM hashes?

1. A. The SAM file has been encrypted using the SYSKEY function.
2. B. The passwords exceeded 14 characters in length and therefore, the LM hashes were set to a “dummy" value.
3. C. The Windows system is Vista or a later version, where LM hashes are disabled by default. — đáp án hiện tại
4. D. The Windows system is using the Kerberos authentication protocol as the default method.