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Joined: Wed Apr 13, 2011 8:56 am


Post by Da_Devil » Wed Aug 24, 2011 11:14 am


Just thought that i'd share this neat tool that i recently discovered and that was very profitable for me, it's called "crunch-wordlist" and you can whore it down from

What this thing does basically is that it generates predefined strings to assist you in brute forcing a hash that you already know at least one or more of it's values and possibly it's lenght.

Here's a quick look at it's syntax :

./crunch [min] [max] [chars] [string]

[min] = minimum depth of the hash value
[max] = maximum depth of the hash value
[chars] = characters to use for string generation
[string] = pre-defined string to use, replace known values by @

Now what that means in practice :

Say i shoulder surf and found out that the last 3 chars of some password is : "123". Also, let's say that i also say a total of 8 asterisks in the on-screen password field, i can use crunch-wordlist with the following syntax:

./crunch 8 8 0123456789 @@@@@123

and pipe that into my favorite brute forcer so it gets fed every NUMERAL 8 chars long strings ending by 123.

Crunch-wordlist is a very basic tool yet it can be very useful in a handfull of situations but it sure does what it do best.

I hope you'll enjoy discovering this tool as much as i did! :mrgreen:

P.S.: Pardon if i'm lacking any details as this is my first "tutorial".

Sargeant at Arms
Posts: 191
Joined: Tue Feb 17, 2009 5:27 am

Re: Crunch-wordlist

Post by psilocybin » Wed Aug 24, 2011 2:57 pm

that's kinda cool. thanks for posting!

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Joined: Wed Oct 26, 2011 10:42 pm

Re: Crunch-wordlist

Post by smithwaysecurity » Wed Oct 26, 2011 10:47 pm

yes Crunch is very useful. like for WPA pass phase cracking

Posts: 1
Joined: Mon Sep 23, 2013 10:26 pm

Re: Crunch-wordlist

Post by TheStereoKiller » Mon Sep 23, 2013 10:42 pm

Very cool tool.

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