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Date: Wed, 13 Feb 2013 18:33:14 +0530
From: Dhiru Kholia <>
Subject: Re: RAR Cracking with JtR Jumbo (Files found during forensics)

On Wed, Feb 13, 2013 at 4:38 PM, Nicolas Brulez
<> wrote:
> While doing investigations, several RAR password protected SFX files were found on hundreds of machines.
> I have limited power for cracking password, and I tried "crark". Using my CPU I could only reach 245 c/s and my single GPU reached 1200 c/s.
> I have tried several things: Some simple wordlist, brute forcing only lowercase, numbers, low/upp/numb/special and i didn't find anything.
> I don't think the passwords are that complex, but the limited power I have probably did not help.

Maybe Jeremi Gosney (@jmgosney) can help with the computing power part.


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