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Re: Best way to crack NT passwds


From: Paul Farrow <augm58 () dsl pipex com>
Date: Sat, 30 Jul 2005 11:25:27 +0100

Chances are the system used by the website was a multi-processor beast of machine, able to maximise cpu time to cracking the passwords. If you can get the password hash, then your best bet is to run it through jtr(john the ripper).

C:\toolkit\passwords\pwdump> pwdump2
Administrator:500:62b239ea3de3b4142e04d2d295f821b0:a929535485de3b5088923fd58d02cca2:::
ASPNET:1000:f5052a93de1b6a7848d83fff52bb5c55:264d62a5f32f74bb6df2642a514fd17f:::
Guest:501:d9dce10ca0c8ba7baad3b435b51404ee:672e556cf53bf2a83c36bead6383212b:::
__vmware_user__:1002:aad3b435b51404eeaad3b435b51404ee:69deddc712c272b33e31fae0f4b82a73:::

C:\toolkit\passwords\pwdump> pwdump2 > passwords.dump
C:\toolkit\passwords\john>john -incremental passwords.dump
Loaded 4 passwords with no different salts (NT LM DES [24/32 4K])
TEST0R              (Administrator:2)
guesses: 1  time: 0:00:00:20  c/s: 9045001  trying: PMSBRK - HLEYKL


Thats on a 1.987mhz AMD processor in windows 2000, running about 30 other things at once.


Hope this helps.

X u r r o n wrote:

hiya!
I have tried many softwares for cracking NTLM hashes, like NC4, Cain and have't tried Rainbow Crack yet. Once i had to recover my XPs lost admin password and i spend around 1 day but Cain/NC4 were not able to guess that. Then i posted that hashes on some site and it did recover my passwd in around 5min. I want to know which technique they used to crack so fast ?

Xurron

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