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Home - Wireless Cracking - Running dictionary in compressed format with Oclhashcat


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mugenma

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Thu, 07 Jan 2016 @ 22:17:21

I am just wondering if I can use compressed dictionary file like xxx.zip instead of plain text file like xxx.txt when running dictionary attack with Oclhashcat.

I searched on hashcat forum but I couldn't find the answer.

Thanks in advance ...


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John_Smith

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Thu, 07 Jan 2016 @ 23:07:45

It supports .bz2 but i think, in my opinion, not worth it.


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mugenma

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Thu, 07 Jan 2016 @ 23:20:28

@N30Sniip3r


Thanks for your input....
It seems like I can run the dictionary in compressed format, and it is so much faster than txt format.
But I am not sure if it goes through every entry in the dictionary.



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John_Smith

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Thu, 07 Jan 2016 @ 23:26:02

I'm working off of 2 TB SSD and a 4 TB HDD so i never really ever tried doing it. If i get bored tonight i will do some benchmarks!


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John_Smith

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Thu, 07 Jan 2016 @ 23:38:57

Yeah i just tested a wordlist thats 2 gb vs 1.5 gb zipped....idk if i did it right but no way it goes through the compressed in less than 3 seconds lol. I'm out of ideas.


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mugenma

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Thu, 07 Jan 2016 @ 23:53:20

@N30Sniip3r


That is what I thought. It was suspiciously super-fast that I thought it was not going through all the entry in the dictionary.
Thanks



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cvsi
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Fri, 08 Jan 2016 @ 00:18:49

I did a test about 2 weeks ago with a 7z file. And for me, it read the file and dictionary supposedly and had founds.
But I never tested it again.


I was testing it because I have about 120GB worth of wordlists. And Compressed in 7z format. They are just under 30GB compressed.


I guess the best way to test it would be get a hashlist, run it with the uncompressed dictionary and see how many hits you get.
Then take the same original hashlist and run it against the same dictionary, but compressed. And see if the output is the same.


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John_Smith

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Fri, 08 Jan 2016 @ 00:41:43

cvsi said:

I did a test about 2 weeks ago with a 7z file. And for me, it read the file and dictionary supposedly and had founds.
But I never tested it again.


I was testing it because I have about 120GB worth of wordlists. And Compressed in 7z format. They are just under 30GB compressed.


I guess the best way to test it would be get a hashlist, run it with the uncompressed dictionary and see how many hits you get.
Then take the same original hashlist and run it against the same dictionary, but compressed. And see if the output is the same.


Ah you can use .7z!? good to know lol!


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cvsi
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Fri, 08 Jan 2016 @ 00:45:41

It worked for me. I think


I never tested it further.


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mugenma

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Fri, 08 Jan 2016 @ 00:58:34

@ cvsi


Your input is always appreciated.
I think it can be run with most compressed format. I will look into it further to be sure.
Thanks Guys !!!


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tibit

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Mon, 03 Apr 2017 @ 16:14:53

OK, some update on this.

Hashcat does NOT work with compressed wordlists!!

You can load a compressed file (zip,rar,7z ... ) and hashcat will deal with it as if it is a textfile.

When loading a wordlist compressed, you'll notice that the amount of passwords loaded are just a fraction of the original wordlist.txt.
The amount of passwordcandidates in a compressed file are exactly the same as the amount of lines you you can see when you open the compressed file with an texteditor, without decompressing it.

If you're lucky you might get some passwords out of it ... most of them will look like :
;?J
‡}å®ø#£‘X½h
18êÆ”õøo{v¹¸

You're only solution is to pipe your compressed wordlist to hashcat.
You can find some info here https://forum.hashkiller.co.uk/topic-view.aspx?t=2465&m=10829
"Reading from compressed word lists."
There are more decompressiontools you can use gzip, xz, zcat, bzip2 ...

I hope that soon somebody will prove me wrong, because I too would love to see this implemented in Hascat!!


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