hello,

I've changed my password in xp recently and although I typed it twice carefully, it seems I did it wrong because I can't log in anymore.
I've retrieved the hashed password and I've tried to find it with jtr.
I don't need to test all possibilities since I'm 100% sure of what I thought I typed, but I could have hit the wrong key twice, or made a cap at the wrong time or translated my hand one key to the right or left, or something along these lines.
I've used all the rules that come with the option --rules but with no result (only a few hundreds of tries), how can I find extended rules that cover the examples I stated above so that millions of them are tried for a wordlist that consists of only one word?
Or maybe there's just another option or software that I could use?

Thanks.

Will it log you in with safe mode? Maybe you can use that to reset your password.

HTH
Dave

You could try "chntpw" if you have a backtrack live cd. Using it you can blank the password and then reboot so you can reset it.

Regards,

Fordeck

Well I'm not that familiar with Windows administration and I didn't think there was a way around it, so I just assumed I had to use a linux software.
Could you please tell me more as to how to use chntpw in a backtrack live cd (and what do you mean with backtrack live cd) and how to log in safe mode (or maybe you thought I was talking about logging in a linux os?) ?
And by the way, the password I mispelled is the admin's, and my account has admin rights but I don't think I can change the admin password from my account.
Thanks.

Here is a you tube video that walks you through the process:

http://www.youtube.com/watch?v=JIeJkjB3okE

Regards,

Fordeck

In Windows, so many things can get corrupted it almost is no use. That's why your best bet is to download Linux, burn it to a CD using ISO Recorder, boot from the CD, and install.

From the LQ rules:By the way, the same issue can happen with any OS that is using passwords to authenticate.

I just received some very helpful advice on a similar poblem. See this recent thread. Maybe something there can help you as well. The advice to use an ophcrack cd was especially helpful.