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A deep-learning network known as a GAN has been applied to passwords, and a tool called PassGAN significantly improves the ability to guess user passwords over tools such as Hashcat or John the Ripper. Continue reading Deep-Learning PassGAN Tool Improves Password Guessing
I’m trying to crack some MD5 hashes given in OWASP’s BWA on their DVWA site. I was able to use John the Ripper and the very first time it worked fine and it showed the reversed hashes using the code:
john –format=raw-md5 –wordlist=/usr/… Continue reading John the Ripper – Can’t get cracked MD5 hash to show
The error I’m getting is this:
Using default input encoding: UTF-8
No password hashes loaded (see FAQ)
I’m not sure if there’s something wrong with using this directory. Must I use a different user account than root? Must that other user … Continue reading John the Ripper keep throwing errors
This question asks for pointers about generating JtR rulesets, but the OP states
I understand how to use it to make various permutations from a given wordlist
Could someone please explain that? From the documentation, it seems as tho… Continue reading Generate John the Ripper rule
I tried to crack my windows passwords on the SAM file with john the ripper, it worked just fine, and it shows me the password. But when i try to hack the same file again, john just tells me :
Loaded 4 password hashes with no different sal… Continue reading show previously hacked passwords with John The Ripper
I am practicing reversing md5 hashed passwords using John the Riper and was curious about some behaviour. I added the md5 hash of zaa to the top of the file with the hashes and when I ran john passwordFile.txt it reversed the hash to find … Continue reading what order does the incremental mode of john the ripper, brute force passwords in?
I have two questions regarding performance of John the Ripper.
Within the format files, there is a variable named MIN_KEYS_PER_CRYPT and MAX_KEYS_PER_CRYPT. How much do they influence the performance. What will be the difference between s… Continue reading John the Ripper performance
I have a set of password hashes.
Here is an example:
9e74437e97ff201ff38416138a22a7f3adfa3b9c10e947481bd94b16eed7df6b6e2806
From the source code of the application generating this hash I learned that the salt is prepended as the first 6 c… Continue reading How to crack `salt + SHA256(salt + password)` hashes with JTR?
I recently recovered a zip archive with some files I need access to, but I can’t remember the password. All I can remember is that the password was short (around 3-4 characters), and contained only lowercase characters and possibly numbers… Continue reading Brute force alphanumeric password using JohnTheRipper
I’m trying test password strength in one of our e-commerce sites. I’m using john the ripper to brute-force a password file. The algorithm used by PHP is:
$hash = md5($salt . $pass)
No other transformation is performed nor in the $salt o… Continue reading John the ripper passwd file format with salt not working