Penetration Testing: Re: Password Brute Forcer

[Ryan Russell <ryan () securityfocus com>]

On Fri, 7 Dec 2001, Ian Lyte wrote:

> What I was wondering was is there a password cracker that substitutes
> numbers for letters?
Sure, crack has done this for a long time:
http://www.users.dircon.co.uk/~crypto/

> As an example, we all know people do tend to use words as a password,
> occasionally improving their strength with the use of numbers i.e.
> password99. I also think that a lot of people may use p4ssw0rd.
If you really want to do this with L0phtcrack, then it would be pretty
easy to write a program that would take a dictionary file, and output a
new (larger) dictionary with the number substitutions done.

                                                Ryan


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