Bugtraq mailing list archives

ANNOUNCE : NTCrack v2.0


From: jwilkins () SECNET COM (Jonathan Wilkins)
Date: Sat, 29 Mar 1997 21:19:37 -0700


NT Crack version 2 has been released.

I apologize for how soon it follows the initial release but I
think that a massive optimization in speed in the new version
justifies a new release.

We ran a user list of length 1006 with a word list of around 860,000 in
5 minutes 30 seconds on a pentium 133 with 32MB RAM running
Windows NT Server.

Roughly 2,606,000 cracks per second..
The old version seemed to get around 15,000 cracks per second..

This is due to Windows NT's lack of any salt functions as well as a
few optimizations regarding the encryption routine and a change in
the way NTCrack processes user files.

The new version is also independent of the cygwin.dll and so is
much smaller but it seems that the cygwin libraries are marginally
faster. When NTCrack is compiled and linking in the cygwin
libraries it was somewhat faster but I decided to release the smaller
version because our little ISDN net connection was getting a little
choked.  Anyone who wishes to mirror this program should contact
me via email at jwilkins () secnet com

Speed freaks are encouraged to compile their own copies
for various UNIX platforms rather than deal with the
overhead of Windows.

One other feature was added, the program now attempts to use
the username as the password.  I have found in many smaller
offices, especially ones that run NT or Netware, that users are
generally uneducated about what constitutes a good password
and so will often use their username.


                                        Jonathan Wilkins

again, I am sorry to re-release so soon, but I really believe that
the improvements justify it..

the new files are only ~22k

-=-=-=-=-=-=-=-
Jonathan Wilkins      |  Futuaris   | If only they had used their
jwilkins () secnet com   | Non Irresus | terminals for niceness instead
http://www.secnet.com |  Ridebus    | of evil ...-Maxwell Smart



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