How to recover lost administrator passwords in Windows 2000 system

Text/天极网

Recently, many friends have told me that for various reasons, their Win2000 system (or NT, XP system) administrator password is lost, ask me how to find Back to the password. Good friends, I can't help, so I took different countermeasures and gave them their own passwords. In the case of Yu Wei, I did a little bit of finishing and promoting the cost. The full text takes the actual cracking operation as an example. It details how to retrieve the lost administrator password under Windows2000 (NT/XP) system. I hope to be helpful to many Windows2000 (NT/XP) system administrators and users.

First, the ultimate weapon Windows Key Part

System: Windows2000 Professional [Version 5.00.2195]

relevant circumstances: system administrator account administrator password is lost, no other can be found at User account, SAM file can not be read or other operations, no input method vulnerabilities and other exploitable vulnerabilities.

Tools required: Windows 2000 installation CD (or Windows 2000 boot disk), Windows XP-2000-NT Key, empty floppy disk.

Operation process and related solutions:

First of all, we need to make a special drive disk with Windows XP-2000-NT Key. Windows XP-2000-NT Key is a software tool specially designed for Windows password cracking by Passware Company of the United States.

www.password.com provides the DEMO version of the software and detailed instructions for use. Interested friends Don't look forward to seeing it. Open the software, you can see a line at the bottom of the prompt: Please insert a blank floppy disk into drive A: and click NEXT when ready. At this time, insert the prepared floppy disk into the floppy drive, click Next, Windows XP-2000-NT Key will automatically make the disk into a special drive disk. Once the driver disk is ready, you can proceed to the next step. Use the Windows 2000 installation disk (or boot disk, in this case, the installation disk) to start the computer whose password is to be restored. When prompted for Press F6 if you need install party SCSI or RAID driver..., press F6 and wait for the loading process to end. , see the prompt: To specify addition al SCSI adapters, CD-ROM drivers. or special disk controllers for use with Windows 2000, including those for which you have a device support disk from mass storage device manufacturer, press S, press the S key Then the system will prompt: Please insert the disk labeled maufacturer-supplied hardwaresupport disk into driver A: * Press ENTER when ready. At this time, insert the floppy disk to load the Windows XP-2000-NT Key driver. Wait a moment, the system will automatically enter the Windows XP-2000-NT Key environment. At this time, the system will prompt: Set Administrator 'Password to '12345'? (Y/N):, type Y, to be displayed:

Password has been reset.

User name is 'Administrator'.

New password is '12345' < Br>

At this point, the password for the system administrator account administrator has been changed to 12345. Take out the installation CD and floppy disk, and re-launch the system to log in with this account.

Postscript: The above is an example of the whole process of breaking the Windows 2000 system administrator password. Some people may say that this does not break the password! Yes, in this case, the password is not cracked, but it is true that it can save the administrator account, the effect is the same. In addition, this method can be called the ultimate method to break the Windows2000/NT/XP administrator password, 100% success rate! And easy to operate, easy to learn and use! The only downside is that the Windows NT-2000-XP software is commercial software that is not available to everyone.

Next, the author will lead you to use the second method to crack the Windows2000 (NT/XP) system administrator password. Interested friends please look down.

Second, crack the weapon LC4

LC4 can be called an antique-grade super password solution, there are several old versions called L0phtCrack before the release of LC4. This tool can be used to perform password spoofing from the Sam file. It is a very good idea to use it for the case of a Sam file.

System: Windows2000 Professional [Version 5.00.2195]

Related situation: The system administrator account administrator password is lost, there is no other user account, no input method vulnerability, etc. Various means can obtain its SAM file.

Tools required: LC4, KLC4

Operation process and related solutions:

First of all, what we need to do is to download the two softwares required in this example, the software After downloading, you need to register to achieve all of its features. The use of KLC4 is extremely simple. You can easily obtain the registration code of LC4 according to the software prompts. There is not much quotation here. Next we need to do just a few simple steps:

Open LC4 and create a new task. Then click IMPORT, Import from SAM file... to open the SAM file to be cracked. At this point LC4 will automatically analyze this file and display the username in the file. Then click on Begin Audit in Session to start cracking the password. If the password is not very complicated, there will be results in a short period of time.

Of course, LC4 is a powerful software, some of its advanced features allow users to customize the crack strategy, and breakpoints, etc., but it is beyond the scope of this article, the specific use method is not much Interested friends can study on their own.

However, this method also has its shortcomings. If the password is more complicated, it may take days or months or even years. Obviously, in this case, this way It is no longer so effective. At this time we need to deal with the problem from another angle.