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Message-ID: <20250421153408.GA2286@openwall.com>
Date: Mon, 21 Apr 2025 17:34:08 +0200
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: stacking 3 rules with john ?
On Sun, Apr 20, 2025 at 07:26:44PM -0700, jeff wrote:
> I am cracking NTLM passwords. I have roughly 90 million unfound
> passwords in my password file.
>
> Currently, I am applying 2 rules to a dictionary with john.
>
> This is the command line I am using:
>
> john.exe --fork=26 --format=NT --verbosity=2 --no-log
> --wordlist=<a_big_wordlist> --rules=by-score --rules-stack=best-by-score
> --dupe=0 <a_big_password_file>
>
> I have been running this for about 8 months, and it has slowed down
> quite a bit (which I expected).
Not finished in 8 months? This makes me wonder just how big your
wordlist is.
> I was wondering if it would be possible to stack up the rules, applying
> 3 of them to my big wordlist?
We have no built-in support for stacking more than 2 rulesets. You
could achieve this by running two instances of "john" and having one of
them feed the other via a pipe, but in this case I do not recommend it.
I think you'll have better results by staying with at most 2 stacked
rulesets, but also trying different/larger ones with smaller wordlists.
Alexander
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