darknet.org.uk — Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman?s original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.
Mar 28, 2006 View in Crawl 4
jasqwertyMar 28, 2006
Well, there is something called SYSKEY, but it's saved on the HD in most cases, so it isn't hard to remove. As would any salting implementation, since it would need to saved somewhere.
sneakerelphMar 29, 2006
haha, that was a good 'un
tjpeopleMar 29, 2006
ive booted the cd and it says it pre loading tables, and is on number 2? and taking ages, how many table are there? anyone know, thanks.
jamsMar 30, 2006
hehe I will remember that one.
podgey22Mar 30, 2006
Because this is not about replacing the system password. This is about actually cracking the password in a drastically lower amount of time than generating all the hashes on the fly. You might as well have said: "You could make sandwiches and eat them on the beach" and that probably would have been more relevant.
xalorousApr 6, 2006
yeah, you must be running a cluster or a supercomputer or some such
jasqwertyApr 16, 2006
LAWL @ people too f**king stupid to realize how rainbow tables work.I'm assuming I have the rainbow tables already, so searching it should be a joke, thus the
jasqwertyApr 16, 2006
LAWL @ people too f**king stupid to realize how rainbow tables work.I'm assuming I have the rainbow tables already, so searching it should be a joke, thus the less than 1 second crack time, and if it's a rainbow table, why DOESN"T it have 100% of the combinations possible? Are you assuming that your processor f**ked up during the table generation?~200 Billion password combinations fit on a 1.5 Terabyte array for a given algo, which although it is a high space requirement for 1 project you might have, isn't unheard of.
schragsJun 29, 2006
I just use rcrack. I personally think its better.
johnny1337h4x0rJul 7, 2006
I just tried it out and all i get is /EMPTY/ undernieth LMpasswd1 for all of my logins. Could someone tell me what I need to do to make this work.
Closed AccountJul 23, 2006
when first booting and you get to a screen that says press enter to install(if you dont press enter it will install anyway and so you may pass this screen quick)Type in slax noagpyou will come to a dos login promptloginrun the vga hardware detectionthen run startxI had the smae problem on a few of my comps, this is how i got it to work.
thepxcJun 19, 2007
If they physically see you at the computer, yes. But if you copy/dump the SAM and SYSTEM files and do it at home, no. This is brute-force, but it doesn't actually try every login. The tables they are referring to are the hashes (encrypted versions) of all possible combinations of passwords of a certain length. The tables have the hashes (what are stored in the SAM file) and what makes those hashes. What they do is they take the hashes from the SAM file, and try everything/check everything in the table to see what hash matches. If the hashes match, then the passwords that _make_ them match.
thepxcJun 19, 2007
If your passwords aren't found in the hash table (empty or more than 14 characters), that's what it tells you.
linky1124Aug 24, 2009
it didn't work sometimes.at that case,you should try <a class="user" href="http://www.resetwindowspassword.com/" rel="nofollow">http://www.resetwindowspassword.com/</a>you see,it is the recommendation of <a class="user" href="http://pcsupport.about.com/od/toolsofthetrade/tp/prem-windows-password-recovery.htm" rel="nofollow">http://pcsupport.about.com/od/toolsofthetrade/tp/p ...</a>
zatinkerFeb 26, 2010
I know a simple way to bypass windows password when you forgot windows administrator password <a class="user" href="http://www.anypasswordrecovery.com/" rel="nofollow">http://www.anypasswordrecovery.com/</a> ,it need not to reinstall windows OS,and wont loss any data,by using "Any Windows Password Recovery 3.0 ". Maybe this could help you.
killytuDec 21, 2010
A Windows Password Reset Disk could do all the job for you, it can reset your lost or forgotten Windows password safely and quickly without login, you can create a Windows password reset disk with the tool Windows Password Breaker http://www.recoverwindowspassword.com/ , then reset your password.
syonxuNov 9, 2011
I just want to say that WIndows password is not safe, some tools can remove it easily such as Windows Password Rescuer.
But you can just use it to recover your lost/forgot password.
If your system is Windows 7/vista/xp,you can use "Windows Password Rescuer Personal/Professional'.
http://www.daossoft.com/documents/how-to-reset-window-2000--xp-vista-win7-password.html
If your system is Windows 2008/2003/2000,you can choose "Windows Password Rescuer Advanced".
http://www.daossoft.com/documents/how-to-reset-window-server-2000-2003-2008-password.html