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Message-Id: <62529DFE-91F0-428B-9D89-B87EE05AC816@m.patpro.net>
Date: Sun, 11 Dec 2016 09:47:52 +0100
From: Patrick Proniewski <p+password@...atpro.net>
To: john-users@...ts.openwall.com
Subject: Re: Need a little help cracking one password
Hi,
On 11 déc. 2016, at 06:43, Robert Moskowitz wrote:
> It just so happens that I used the same password on another server, and created a passwd file with the one entry. I am running the John that comes with Fedora 22, the docs cay it is 1.10 2013/05/29.
I'm not sure this 1.10 version of JtR exists. It probably should be 1.8.x.
2013 sounds a bit old, you might want to install a more current version, and even to compile a Jumbo version.
> John has been crunching away for 20 days on a Lenovo x120e notebook without finding the password. Well I know a few things about this password and I would like to instruct John o be selective on what it tries. But I am a bit of a hack and need so hand-holding on how to alter /etc/john.conf (or make another) that will target the password.
>
> I know the password is 10 characters long.
>
> I know that the first position is either 'x' or 'X'.
> The second is a digit, as is the third.
> The forth is alpha, and I don't know the case.
> The fifth is either 'q' or 'Q'
> and soforth (either digit, some alpha, or a specific alpha of either case)
With a recent Jumbo version, you can use --mask attack mode:
./john -1=[?u?l?d] --mask=[xX]?d?d?[a-zA-Z][qQ]?1?1?1?1?1 /path/to/passwdfile
(I'm not sure for the non-Jumbo version, but it might work too).
patpro
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