Questions tagged [hashcat]

Hashcat is a program designed to brute force hashes, and is commonly used to crack passwords.

15 questions with no upvoted or accepted answers
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Recovered a 7z password with hashcat, but it's not the right one

I am trying to recover a 7z file, but have forgotten the password. It's completely AES-256 encrypted (i.e. not even the filenames are available). Steps: Generated hash file with 7z2hashcat.pl Ran a ...
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40 views

Hashcat first wordlist then brute force if nothing found

I'm trying to run my hashcat as automated and efficient as possible. I have a file with NTLM hashes: 607C4CDCDA0EFBF023C4DEA52DF90641 D25ECD13FDDBB542D2E16DA4F9E0333D AAD063F78DA1183CBD8BD7812FADF9C6 ...
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35 views

Dynamic format used in John the Ripper jumbo way slower than MDXFind

I'm currently doing some research on a pretty huge list of hashes (approx. 2 millions) and thus I'd like to improve my cracking speed. The hash format is 12 rounds of SHA512(password + salt), which ...
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1answer
30 views

hashcat not allowing increment option

Basically I am trying to bruteforce a MD5 hash in two systems using hashcat. The hash is between 3-8 characters in length. But when I attempt to split the password tries in hashcat, it throws below ...
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45 views

How does the WPA2 crack work with Hashcat 22000 format hash lines?

I'm trying to understand the format and functionality of WPA2 hash lines that start with WPA*02* used with -m 22000 on hashcat. The way I understand it, this format was created as an improvement and ...
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1answer
87 views

How do I use hashcat to recover password from ata drive lock

How would I get the password for encrypted SSD's I bought (legally bought from a business who forgot the password, I plan on wiping them after I unlock them) I am new to using software like hashcat, I ...
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149 views

using hashcat to bruteforce hash with --skip and --limit with --increment

Basically I am trying to split the work of hashcat brute force between multiple system. I found that to do that, I can use -s 1 -l 100 and in next machine I do -s 100 -l 1000 and etc. The problem here ...
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1answer
128 views

John the Ripper / Hashcat rule, reject candidate if char at position X is the same as character at position Y

I'm using John to generate some word lists and I'm trying to figure out the most optimized way to do the next step. What I want to do is add ever possible 3 digit number to a set where the first digit ...
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1answer
377 views

Using DD to get the hash of a non-system partition encrypted by VeraCrypt

I am trying to use DD for Windows to obtain the hash of a non-system partition that was encrypted via Veracrypt, but have run into a bit of a problem. The command I used to get the hash of the ...
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99 views

Bruteforce different encodings

I have a hash $office$*2013*100000*256*16*664f9e0787392c2b1632d3947aaadee4*27dc7d029f76244a407acf9b5afa3740*ebbc055ae08124f6a6be81ef812da4fece16b2ad86eede3916d9cda15f71833f password: лl My wordlist:...
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3k views

Unable to start hashcat in mode 13600 WinZip : Separator Unmatched

I have a zip file containing a JPEG image of size 3.5 MB, encrypted with AES-256. I used WinZip for the creation of the zip file. In order to create the hash of the zip file, I used John The Ripper's ...
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607 views

How to mask attack a sha256 hash with following information using hashcat?

I am hashcat newbie and I want to crack a hash :) The answer is 1-15 (unknown) characters and it may contain 'a-z' 'A-Z' '0-9' and '_' . (A Twitter username) How may I mask attack a hash with above ...
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1answer
152 views

Hashcat with only CPU and not GPU

Can I use hashcat with the only CPU and not a GPU? I found hashcat-legacy but it isn't stable as much as hashcat current.
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1answer
439 views

Where can i find a pre-computed 8 caracter uppercase password file/dictionary

To create an all permutations dictionary of an 8 character uppercase only password, I get I can use crunch to make this wordlist and file would roughly be 1.8 - 2Tb in size. Is there anywhere I can ...
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1answer
410 views

Hash variation - .vc and string format?

Why is a veracrypt hash contained in a '.vc' and not in what appears to be a standard mixed number and letter string format?