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HellBound Hackers | Computer General | Cryptography

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Alternative to Rainbow tables

stealth-
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Posted on 02-05-09 20:09
I'm wondering if theres a alternative to rainbow tables. Im trying to crack the hash in the "other challenges" section, but I currently don't have access to a system with enough ram or space to download or run a rainbow table.

Also, if there is a alternative, what would be the time difference? I don't mind a couple hours to leave it running, but any more than a day and i'd rather just wait till I get access to a faster computer.


The irony of man's condition is that the deepest need is to be free of the anxiety of death and annihilation; but it is life itself which awakens it, and so we must shrink from being fully alive.
http://www.stealt. . .

Edited by rex_mundi on 17-03-14 10:19
http://www.stealth-x.com
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RE: Alternative to Rainbow tables?

clone4
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Posted on 02-05-09 20:17
use rainbow tables only if other methods fail, or as an alternative to bruteforcing. Get a good dictionary and use JtR for ditionary attack, or use one of the many online databases.

Also there are online crackers (milw0rm) and I think I've seen even online crackers based on rainbow tables., but again for this hash dictionary attack should do in hours if not minutes


[img][/img]img164.imageshack.us/img164/5713/perlvl0.jpg

clone4.freehostia.com/ubuntu_3.png
spyware - "They see me trollin'..."
<yaragn> ever seen that movie? The Matrix?
<yaragn> with those green lines of flying text?
<yaragn> *THAT'S* Perl



Edited by clone4 on 02-05-09 20:18
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RE: Alternative to Rainbow tables?

stealth-
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Posted on 02-05-09 20:25
Yeah I don't think i'll use an online service to do this, like you said I really wouldn't learn much.
I know a bit of python, but i'm not sure it's enough to be able to write a cracker.

Anyways, I'll do some research on those topics and see if I can manage to make a cracker (I've been looking for something to program recently anyways)

Thanks


The irony of man's condition is that the deepest need is to be free of the anxiety of death and annihilation; but it is life itself which awakens it, and so we must shrink from being fully alive.
http://www.stealt. . .
http://www.stealth-x.com
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RE: Alternative to Rainbow tables?

clone4
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Posted on 02-05-09 20:30
Fritzo wrote:
Why only use Rainbow tables in other methods fail?

and he doesn't learn much from using an online cracker now does he? (to OP: I forgot to mention, read up on MD5 too.)

And yes, there is a site cracking hashes using Rainbow tables, I think it's http://www.plain-. . .


It's not very effective unless you have a lot of data stored locally, I think it's preferable to try other methods then downloading loads of rainbow tables...

You are right about the second one though, my bad, for this challenge it's not exactly appropriate.

And I'd advise using perl only if you actually want to learn how to make a simple bruteforcer/cracker, it's fairly quick, but very resource wasteful, and you have much faster alternatives available
Also thanks for the link Smile

@OP: good luck, everything else necessary has been already saidSmile


[img][/img]img164.imageshack.us/img164/5713/perlvl0.jpg

clone4.freehostia.com/ubuntu_3.png
spyware - "They see me trollin'..."
<yaragn> ever seen that movie? The Matrix?
<yaragn> with those green lines of flying text?
<yaragn> *THAT'S* Perl



Edited by clone4 on 02-05-09 20:32
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RE: Alternative to Rainbow tables?


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Posted on 03-05-09 22:02
I usually start making a simple dictionary attack on it, and at the same time check it with some online tools. Simple googling will do the trick. And if that doesn't work, I'll start bruteforcing (for a reasonable amount of time). If that doesn't do, then it's not worth it. Frown


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RE: Alternative to Rainbow tables?


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Posted on 03-05-09 22:16
Fritzo wrote:
That -really- does depend on what that hash is for Good sir.
- and if you got a second box running, only made for cracking hashes, then who cares if it takes a month for it to finish?

I would call your statement is invalid.


Well, I didn't say what a reasonable amount of time was, did I? Wink


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RE: Alternative to Rainbow tables?


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Posted on 05-05-09 09:27
http://www.freerainbowtables.com/

Google is your friend


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RE: Alternative to Rainbow tables?

clone4
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Posted on 05-05-09 09:48
jjbutler88 wrote:
http://www.freerainbowtables.com/

Google is your friend


That site is dead as far as cracking goes


[img][/img]img164.imageshack.us/img164/5713/perlvl0.jpg

clone4.freehostia.com/ubuntu_3.png
spyware - "They see me trollin'..."
<yaragn> ever seen that movie? The Matrix?
<yaragn> with those green lines of flying text?
<yaragn> *THAT'S* Perl



Edited by clone4 on 05-05-09 17:46
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RE: Alternative to Rainbow tables?


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Posted on 05-05-09 17:32
Active machines - 1539


Doesnt look dead to me... Used it many times to crack md5 hashes.

*edit* - just read the news, my apologies, it is down. Looks like im gonna need to find another way to get those damn hashes cracked Pfft




Edited by on 05-05-09 17:35
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RE: Alternative to Rainbow tables?

clone4
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Posted on 05-05-09 17:57
jjbutler88 wrote:
Active machines - 1539


Doesnt look dead to me... Used it many times to crack md5 hashes.

*edit* - just read the news, my apologies, it is down. Looks like im gonna need to find another way to get those damn hashes cracked Pfft


Fritzo suggested http://www.plain-text.info/, tried it and seems to work quite well...


[img][/img]img164.imageshack.us/img164/5713/perlvl0.jpg

clone4.freehostia.com/ubuntu_3.png
spyware - "They see me trollin'..."
<yaragn> ever seen that movie? The Matrix?
<yaragn> with those green lines of flying text?
<yaragn> *THAT'S* Perl

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RE: rainbow tables - hash cracking

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Posted on 15-06-09 11:46
yeah , http://www.plain-text.info/ was down but now back again.
gr8 site for hash cracking.
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RE: Alternative to Rainbow tables?


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Posted on 15-06-09 17:40
Umm... you shouldn't need a rainbow table to crack any hashes in other challenges. I believe i've only had to use gdataonline.com/seekhash or milw0rms cracker. And JTR, didn't even have to load wordlist or anything. just ~$ john pass.txt (<-file with hash in it. Pfft


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RE: Alternative to Rainbow tables?

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Posted on 15-06-09 18:44
S1L3NTKn1GhT wrote:
And JTR, didn't even have to load wordlist or anything. just ~$ john pass.txt (<-file with hash in it. Pfft


Yeah, and prepare to wait for a long time for the computer to crack the hash, and provided the computer is powerful enough. Brilliant advice.


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RE: Alternative to Rainbow tables?


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Posted on 15-06-09 22:46
Ummm... dude. It took about 1 minute. Pfft

Edit: Its not the best choice for cracking hashes, but works just fine for the other challenge.




Edited by on 15-06-09 22:47