and u need not know username and nothing...
It is impossible to gain access to the SAM file located in the %SystemRoot%\system32\config directory,
while Windows NT/2000/XP/2003 is running because it is used by the operating system. If there is a physical access to the machine, it is possible to copy the SAM file by booting operating system copy or another operating system. If Windows NT/2000/XP/2003 is installed to the disk with NTFS file system, accessing it from MS-DOS or Windows 95/98/Me will require additional software. In MS-DOS can be used such programs as NTFSDOS and NTFSDOS Professional, in Windows 95/98/Me -NTFS for Windows 98 (by Mark Russinovich and Bryce Cogswell). Accessing from Linux operating system will require an NTFS support turned on. It is also possible to boot from a floppy disk and copy SAM file, having launched a program to access NTFS in advance.
After this you need to import from SAM file. Extracting password hashes from a SAM file was first developed and applied in SAMDump program (by Dmitry Andrianov). During a SAM file i The way to obtain a SAM file in Windows NT operating system, which does not require a computer rebooting, is copying itfrom
%SystemRoot%\repair directory or emergency repair disk. Every time when an emergency repair disk in Windows NT is created by RDISK program, a SAM file packed and saved to a sam._ file, which is in fact backup copy of a SAM file. A sam._ file is an archive in the cabinet format. This file can be unpacked by the command "expand sam._
sam". The disadvantage of this method is that some passwords might have been changed since the emergency repair disk creation and sam._file might be outdated. LCP program has a built-in ability to import SAM file from a sam._ file without using the expand program.A sam._ file is preliminary unpacked while import of user accounts list process and then the actual SAM file import is performed.
A SAM file is also copied when a complete backup copy is created. If there is
an access to a backup copy, a SAM file can berecovered from
%SystemRoot%\system32\config
directory to a different machine and after all extract password hashes from it. The
disadvantage of this method is also that passwords might have been changed since the last time of backup copy creation.
There is the SYSKEY tool, which first appeared in Service Pack 3 for Windows NT.
SYSKEY additionally encrypts password hashes
of user accounts, which makes import from SAM
file by SAMDump useless. SYSKEY can be used
in one of the following variants:
* generated startup key is saved encrypted to
registry on the local hard disk;
* to derive startup key the startup password
chosen by the administrator is used;
* generated startup key is saved to the
floppy disk, which should be inserted during
operating system start. Log in with out WIN
XP admin password
till recently i was thinking if there is a
way to log in a computer
without knowing his/her adminitrator`s
password.whough i have already
posted a lot of tips to gain
access /break administrator`s password.
here`s my new finding.
1. Place your Windows XP CD and start your
comp (before that set your
bios set to boot from CD)
2. Screen messages for booting is typically
"Press any key to boot from cd"
3. The first screen will indicate that Setup
is inspecting your system
and loading files.
4. When you get to the Welcome setup screen
press Enter to setup Windows now
5. The licensing Agreement comes next � Press
F8 to accept it.
6. The next screen is the SETUP screen which
gives you the option to
do a Repair. It should read something like
"if on of the following
Windows XP installations is damaged, Setup
can try to repair it"
Use the up and down arrow keys to select your
XP installation (in case
you have more than one Windows on your comp �
if you have one, it
should already be selected) and PRESS R TO
BEGIN REPAIR process.
7. Let the Repair run. Setup will now check
your disks and then start
copying files which can take several minutes.
8. Shortly after the Copying Files stage, you
will be required toreboot.(this will happen automatically
you will see a progress bar
stating "Your computer will reboot in 15
seconds"
9. During the reboot, do not make the mistake
of "pressing any key" to
booth from CD again! Setup will resume
automatically with the standard
billboard screens and you will notice
INSTALLING WINDOWS is
highlighted.
10. Keep YOUR EYE ON THE LOWER LEFT HAND SIDE
OF THE SCREEN AND WHEN
YOU SEE THE INSTALLING DEVICES progress bar,
PRESS (SHIFT + F10). This
is security hole! A command console will now
open up giving you the
potential for wide access to your system.
11. At the prompt type NUSRMGR.CPL and press
ENTER. Bingo! You have
just gained graphical access to your User
Accounts in the Control
12. Now simply pick the account you need to
change and remove or
change your password as you prefer. If you
want to log on without
having to enter your new password, you can
type userpasswords2 at the
prompt and choose to log on without being
asked for password. After
you've made tour changes close the windows,
exit the command box and
continue on with Repair.
13. Once Repair is done you will be able to
log on with your new
password (or with out if you chose not to be
asked for password) and
so lives go one
Entering Xp in less than 55 sec without admin
pass
You can break admin pass within 55 sec.
yes,,,,, n i m not joking .
This trick works only in Windows XP Pro.
U can break admin pass within 55 seconds.
Just go login ur computer in safemode by
pressing F8. After loging in Go to Run. Just
type this:-
net
name"
type administrator's name & new password
without quotes..
the commands.
Restart ur PC.
And then logon ur admin account with ur new
password.
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