Which of the following tools is less likely to be used by a hacker?

A.
l0phtcrack

B.
Tripwire

C.
OphCrack

D.
John the Ripper

Explanation:
Tripwire is a tool that detects when files have been altered by regularly recalculating hashes of them and storing
the hashes in a secure location. The product triggers when changes to the files have been detected. By using
cryptographic hashes, tripwire is often able to detect subtle changes. Contrast: The simplistic form of tripwire is
to check file size and last modification time.
l0phtcrack, OphCrack and John the Ripper are password cracking tools and are therefore more likely to be
used by hackers than Tripwire.
Incorrect Answers:
A: l0phtcrack is used to test password strength and sometimes to recover lost Microsoft Windows passwords,by using dictionary, brute-force, hybrid attacks, and rainbow tables. It is more likely to be used by a hacker than
Tripwire.
C: Ophcrack is a free Windows password cracker based on rainbow tables. It is more likely to be used by a
hacker than Tripwire.
D: John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS,
BeOS, and OpenVMS. It is more likely to be used by a hacker than Tripwire.

http://linux.about.com/cs/linux101/g/tripwire.htm