Recover Lost Windows NT Administrator Password by Wayne Maples . 2004 / Last Updated on 7 Sept. NTAccess can replace the administrator password of a Windows XP, Windows NT or Windows 2000 system by rebooting the. This is a utility to reset the password of any user that has a valid local account on your Windows system. But thanks to a German(?) named B.D, I've now made a program that understands the registry. This site provides CD and floppy images for end users to. Use this information at your own risk. Any attempt to circumvent an OSs normal security can be disastrous. If you are really, really stuck - this tip may be for you. No warranty is suggested or implied. I have used some of these tools. Sometimes successfully and sometimes not. Those that attempt to overcome Syskey, in particular, seem risky. You will need to put these files in a directory called reskit At a MS-DOS command prompt(Start NTLoader NTLDR A: The boot loader program for windows NT/2000/XP, is Ntldr or Io.sys. What is the name of the Windows NT2000XP boot loader program? SAVE CANCEL already exists. Would you like to merge this question into it? Windows Password - password recovery tools for Windows NT/2000/XP/2003/Vista/7, PWL view - password recovery tools for Windows 95/98/Me. Smart Table Recovery method is available in Windows Password v6.0. Smart Table Recovery. To install this download: Download the file by clicking the Download button (above) and saving the file to your hard disk. Double-click the instmsiw.exe program file on your hard disk to start the Setup program. Follow the instructions on the screen to complete the. Super Fdisk can be installed on Windows 95/98/ME/NT/2000/XP/2003 and it is easy to create emergency floppy disk or burn bootable CD to manage partitions. Super Fdisk supports all partition types. I have had the most success with the Linux boot disks and a manual brute force dictionary attack using L0phtcrack. These are do- it- yourself tools. There is something to be said for the comfort level of the commercial tools. Consider Elcom. Soft for a commercial approach. In particular, depending on what you are searching for, you may want to check on my Penetration Testing Tip #1. Password Recovery Resources tip. Boot Options in a Boot.ini File Overview of the Boot.ini File Overview of the Boot.ini File Overview of the Boot.ini File. It has two boot Copy. NTLDR (abbreviation of NT loader) is the boot loader for all releases of Windows NT operating system up to and including Windows XP and Windows Server 2003. For core security issues see Wayne's Security Resources. I guarantee that you will be shocked but its a better security practice to make penetration testing part of your yearly risk analysis than to wait until you have a real incident. Given my experience as an NT systems admin and my experience hacking just such an environment, I will be writing white papers to help the NT admin protect his/her *ss. A critical resource is the administrator's workstation. I strongly recommend you read my paper on how to protect this resource. Do you have auditing turned on so you can detect when a server has been turned off? Making it vulnerable to offline attacks. If you are not aware of it. Without physical security, there can be no security. It is as simply as: shutdown or turnoff the PC. PC and reboot. respond to the Linux promptsthe highest barrier is understanding unix media descriptors. This process requires physical access to the console and an available floppy drive. This version can disable syskey protect. They do note that turning off syskey under Windows 2. SAM and is not to be attempted except as a last resort to reinstallation. I have also seen PCs where the Linux boot disk works but the SAM seems to be invisible to Linux (although its in its standard location and later access with NTFSDOS allows it to be copied). Recognized requirement for servers. How many workstations are behind locked doors? Given what you have learned here, shouldn't at least a select set of workstations be secured? Say the officers, personnel, security personnel, .. There are physical hacks. For a high security environment. Would this fly where you work? Syskey stymies the freeware Linux offline attacks at this point in time. Some of the commercial products state they can reset the password even if Syskey has been applied. There are commercial products to do this. NT2. 00. 0 includes encryption as an NT feature similar to NT4's NT compression feature. None of the methods I am aware of at this time will work under NT2. It is not practical in most environments to have high security applied to workstations. But one or more of the less intrusion barriers would increase the time to break in and would increase the probability of exposure to the hacker. This would increase the probability of management acceptance of usage of these tools by legitimate support personnel trying to solve a difficult problems. The password is changed. Some include backup/restore features for the sam. With this feature, one could boot a Windows NT PC; backup the sam data; overwrite the pw; reboot; login using the compromised account and do mischief including sending inappropriate email or deleting bits and pieces here and there - darn those unreliable PCs; restore the sam and the owner's pw; since the attack was offline, unless the shutdowns are monitored, the episode is essentially invisible. It took me 5 minutes with a very simple search to find the utilities and procedures documented on this page. The security by ignorance barrier is incredibly low. These baby tools for NT should make one seriously consider how to improve server and workstation security. Server physical security is generally good except in departmentally distributed servers. Workstation security is a nonentity in all but the most paranoid shops. These tools should give one pause, a act to protect your officers and other PCs with highly sensitive data from hackers. It can bypass syskey protection. NTAccess can replace the administrator password of a Windows XP, Windows NT or Windows 2. CD- ROM (XP only). This is useful if you forgot the administrator password and cannot access the Windows XP/2. NT system. They provide technical support should things go awry. Given the consequences of problems, tech support can be worth every penny. They also have a set of freebies utilities. They have recently announced a version of their product to reset Administrator password, secure boot password or key disk if lost: Windows 2. Windows XP Home and Professional Editions are supported. Windows 2. 00. 0 Professional, Server and Advanced Server are supported. Windows NT Workstation and Server 3. Loads third party mass storage (SCSI, RAID, etc.) drivers when using Windows XP, 2. NT 4. 0 setup disks. All secure boot options are supported. All Service Packs are supported WInternals offer NTLock. Smith to reset lost NT passwords. It only works in conjunction with NT Recover which is designed to recover data from damaged NT boxes. It sounds much like the Linux solution but uses NT Recover to get to the registry of the target NT box. I suggest you take a close look at their admin tools. Their product is Windows 2. It can turnoff Syskey protection at the cost of the loss of all passwords except the administrators account which it resets. My guess is that they achieve this by deleting the LSA Secure. Boot value and replacing the Administrator's password hash. They are not breaking the encryption. Just are turning it off. See my Syskey tip for more information. The method takes advantage of the fact that certain system services, such as the spooler, operate under the security context of the local system. By changing the file name of the spooler to another executable it is possible to launch an application with privilege to change password. There are several versions. They have the advantage that they do not appeal to hackers - take too long - too much danger of exposure. This technique has the disadvantage that there must be enough space to install another copy of NT. This method is documented : here, here, here, and many other locations. This is actually a method to escalate a user's account to admin level. If you have another account on the box, even though it is not admin, lets say account manager or backup account, you can log onto the system, rename spoolss. When you logon after reboot, User Manager will be running in the foreground running as localsystem. This gives you the ability to reset the admin password to whatever you want, or to create an new admin account for example. You need to logoff and back on using the administrator command to get the renamed files back under their proper names. Note: for NT workstation, User Manager is musrmgr. However, you can make it work if you consider. It happens that you can't delete the . This file is loaded on start- up and can't. Task Manager. As long as you can't stop the. Even if you find a way to stop the process you can't. Windows will automatically replace it. If the harddisk is FAT formatted it will work. If the harddisk is NTFS formatted you'll need a NTFS driver. NTFSDOS Pro, downloadable from. In Windows 2. 00. Well, compile the following C program. When you. start Windows next time, as a normal user or as an admin, the User Manager. It will actually open a CMD prompt, in the security context of the local system account. Be patient, it sometimes takes several minutes for the command window to popup. Type MUSRMGR, into the CMD prompt to execute User Manager, and reset the Administrator's password. If you have an old ERD from when you knew the admin password, you could use it during a Windows NT repair install to get back to that point. Just be careful, any accounts created since that point will be lost and those not lost will have their passwords reset to an old version. This approach normally works when nothing else will in most OSs not using encrypting file systems. Guess whether I have tried this approach. It will break any password (it may take a day or two). L0pht. Crack has the advantage that it does not modify the passwords. Additionally in another context, a run by the administrator against the password hashes using a simple dictionary will give you an idea if your users passwords are too weak. See El. COM for dictionaries that you can download as well as a significant suite of password breaker software. See atips. 17. 4 if you are unfamiliar with NTFSDOS. EXE. Unfortunately, as this article should make you aware of, passwords can give one a false sense of security when its all you have protecting your a$. At the prompt, go to the Windows directory and delete . No password will be required on the next boot. A new password can be set if you wish at the Start.
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