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[Article]-Tutorial: Rainbow Tables and RainbowCrack
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[Article]-Tutorial: Rainbow Tables and RainbowCrack
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don
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[Article]-Tutorial: Rainbow Tables and RainbowCrack
«
on:
November 06, 2006, 10:58:46 PM »
Chris has done what amounts to an academic paper on rainbow tables. This impressive article has to be one of the most definitive works on the subject. I hope the readers appreciate the kind of work it takes to bring you this type of content.
Hats off Chris!
Tutorial: Rainbow Tables and RainbowCrack
Don
«
Last Edit: January 01, 2007, 02:38:22 PM by don
»
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CISSP, MCSE, CSTA, Security+ SME
oleDB
Recruiters
Full Member
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Posts: 236
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #1 on:
November 07, 2006, 09:54:15 AM »
That was a very excellent writeup Chris.
I would also like to mention this tool, which I'm starting to like better then Cain and LC5. It seems to be slightly faster.
http://ophcrack.sourceforge.net/
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don
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Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #2 on:
November 07, 2006, 10:09:10 AM »
I've mentioned this in another post, but it's worth mentioning here. Ophcrack has a live, bootable CD:
Quote
Ophcrack Live CD
The Ophcrack LiveCD is a bootable Linux CD-ROM containing ophcrack 2.3 and a set of tables (SSTIC04-10k). It allows for testing the strength of passwords on a Windows machine without having to install anything on it. Just put it into the CD-ROM drive, reboot and it will try to find a Windows partition, extract its SAM and start auditing the passwords.
Getting it
You can
download the ISO image
from SourceForge mirrors.
Package
You will find ophcrack 2.3 release (source tarball and win32 installer) at the root of the CD-ROM. The tables are located in directory 'ophcrack/10000'. Please feel free to install ophcrack and copy the tables on your harddisk if you want to use ophcrack outside of the LiveCD.
Don
PS - Help get Chris' awesome work noticed by
digging this story
.
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LSOChris
Guest
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #3 on:
November 07, 2006, 11:13:07 AM »
cool, i'll have to check that out, specially if its a bootable ISO
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ryan
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Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #4 on:
November 07, 2006, 09:59:05 PM »
Way to go Chris, this just made frontpage digg.com
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http://yaisb.blogspot.com
LSOChris
Guest
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #5 on:
November 07, 2006, 10:15:59 PM »
yea!!!!
now i can expect a few more trojans in my email tomorrow i guess...
its worth it though for EH-net and LSO
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slimjim100
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Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #6 on:
November 08, 2006, 01:57:31 PM »
Very nice write up! I am one of the founders of
www.plain-text.info
and I still feel people do not listen to the fact weak passwords is negligence. I do want to add one thing. You explained how NTLM is better and LM (true) and that users should migrate over to NTLM. I agree it's the right way to go but remember to that LM is still around because networks and domains still have Windows 9X & NT PC's on there domains. If you force you domain/LAN to only NTLM you will push out all the older M$ PC's. Anyway nice paper and good luck on you keeping the Trojans out. I just opened a new web site (
www.anti-hacker.info
) and I get all kinds of kiddies hitting it.
Slimjim100
www.anti-hacker.info
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LSOChris
Guest
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #7 on:
November 08, 2006, 09:59:25 PM »
hey thanks for the nice comments! and the good point about the 98/NT boxes.
and welcome to EH-net.
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p0et
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Posts: 197
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #8 on:
December 05, 2006, 10:18:12 AM »
last night I thought I'd try to create some rainbow tables. I followed Chris' tutorial and the one on
http://www.antsight.com/zsl/rainbowcrack/rcracktutorial.htm
.
I didn't see that I should have done "rtgen lm alpha 1 7
0
2100 8000000 all" for my first table, so I did "rtgen lm alpha 1 7
1
2100 8000000 all". This finished in a few hours and the description I saw for it was:
rtgen lm alpha 1 7 2 2100 8000000 all
hash routine: lm
hash length: 8
plain charset: ABCDEFGHIJKLMNOPQRSTUVWXYZ
plain charset in hex: 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 5
4 55 56 57 58 59 5a
plain length range: 1 - 7
plain charset name: alpha
plain space total: 8353082582
rainbow table index: 1
I then proceeded to "rtgen lm alpha 1 7
2
2100 8000000 all" and the info I saw for this was:
hash routine: lm
hash length: 8
plain charset: ABCDEFGHIJKLMNOPQRSTUVWXYZ
plain charset in hex: 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 5
4 55 56 57 58 59 5a
plain length range: 1 - 7
plain charset name: alpha
plain space total: 8353082582
rainbow table index: 2
These both look quite identical to me. I thought they would have different plain charsets or am I missing something?
lm alpha 1 7
0
2100 8000000 all is being generated right now...
Thanks.
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slimjim100
EH-Net Columnist
Sr. Member
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Posts: 385
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #9 on:
December 05, 2006, 02:40:47 PM »
Try to read this
http://www.plain-text.info/Rainbowtables_Basics/
. Also look at your rainbow table index number.
Slimjim100
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p0et
Full Member
Offline
Posts: 197
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #10 on:
December 07, 2006, 02:09:02 PM »
I see that I can either generate my own rainbow tables with the help of the Tutorial on this site or I could download the SSTIC04-10k rainbow table.
What do you guys prefer? Any benefits to doing it either way? I just finished generating and sorting my 5 rainbow tables.
Logged
GCIH, Security+, Network+, A+, MCP, DCSE
LSOChris
Guest
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #11 on:
December 07, 2006, 04:28:46 PM »
i ended up downloading a set from somewhere...dont remember where and i also created my own. depending on computer speeds it can take a while to generate them (a day or more). if you can download them for free i would do that, personnally i wouldnt buy anything i can do myself but thats just me.
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slimjim100
EH-Net Columnist
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Posts: 385
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #12 on:
December 08, 2006, 06:32:05 AM »
I made my own back when rainbowcrack was released but I went out and did the team method. If you can find a small group of others that want to help you can just make the scripts and assign them out. My little team was called "Midga.org" (note the domain is now a friends mudding site) but after getting up and running we merged with another group and made plain-text.info and at last count I think we are up to about 2+ terabytes of tables. I would not recommend buying rainbow tables as half the fun is customizing them to fit your needs. I have 250 gig of tables on an external hard drive I keep with me for offline cracking and when I need more power I then move to web based tables.
Slimjim100
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p0et
Full Member
Offline
Posts: 197
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #13 on:
December 20, 2006, 09:19:20 PM »
Hey guys,
There was a website I used a little while ago to input a few hashes (individually) and the site's rainbow tables cracked them for me. I've lost the site though. You guys know which one that was?
I know the plain-text.info site, but see that you can only input a hash file or something and the results are posted for all to see. It wasn't that one.
Thanks!
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p0et
Full Member
Offline
Posts: 197
Re: [Article]-Tutorial: Rainbow Tables and RainbowCrack
«
Reply #14 on:
December 20, 2006, 09:37:59 PM »
Found it!
http://lasecwww.epfl.ch/~oechslin/projects/ophcrack/
Thanks.
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GCIH, Security+, Network+, A+, MCP, DCSE
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