Date: Mon, 28 Jan 2019 17:53:35 -0600 From: Morgan Woodward <mjwoodwa5@...il.com> To: john-users@...ts.openwall.com Subject: Re: DMG file password cracking Does this give you access to the actual files? On Wed, Jan 9, 2019 at 3:36 PM Solar Designer <solar@...nwall.com> wrote: > Hi Morgan, > > On Wed, Jan 09, 2019 at 03:20:57PM -0600, Morgan Woodward wrote: > > I've put myself in quite the predicament. I have locked myself out of a > > password protected .dmg file that contains months of research I worked on > > over the summer. I let it sit too long and now I can't remember exactly > > what the password is. I know generally what it should be, but I can't get > > it after trying about 100 different passwords. I am looking to download a > > program that can help me brute force crack it. Which do you recommend? I > > have very basic computer knowledge, but can learn pretty easily. I have a > > macbook air running OS High Sierra 10.13.6 > > You can try one of the community-contributed builds of JtR for macOS: > > https://download.openwall.net/pub/projects/john/contrib/macosx/ > > On newer hardware, use the "avx2" version. If it tells you "Sorry, AVX2 > is required for this build", then use the "sse4" version found nearby. > > You'll need to first use the dmg2john program on your .dmg file, > redirecting this program's output to a text file, like this in a > Terminal after cd'ing to the "run" directory: > > ./dmg2john /path/to/file.dmg > file.txt > > Then use JtR itself on the resulting file, like this: > > ./john file.txt > > Once you confirm you got this working, the community in here will help > you focus the attack based on whatever you recall about the password. > > Alexander >
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