GCIH: GIAC Certified Incident HandlerDemo

By GIAC · Question Mode

QuestionQ612

Attacking Passwords

What is the result of running the following command?

hashcat -m 0 -a 3 ntds.dat --potfile-path ntds.potfile -1 ?d?d?d?d?d?d

  • A Brute force an md5 hash whose input was numbers
  • B Crack six digit LANMAN passwords
  • C Remove the encryption from the ntds.dat file
  • D Create a dictionary of 3000 usernames
Explanation

Hashcat mode -m 0 targets MD5, and attack mode -a 3 performs a mask attack. The -1 option defines custom charset 1, consuming ?d?d?d?d?d?d as its value; it does not supply a six-position attack mask. Consequently, the command does not specifically try only six-digit numeric MD5 inputs. None of the listed choices is technically correct; option A appears to be the intended choice if the trailing value was meant to be the mask rather than the argument to -1.

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