Practical Skills for hackers to crack common computer passwords

Comments: When maintaining and using computers, network administrators often encounter various password loss problems. Here, we have prepared some methods to crack the passwords for the majority of network administrators, but I hope you will not do anything bad. The boot password is the first one we need to deal with, so we should start with the CMOS password cracking. Although there are different types of CMOS, their encryption methods are basically the same. Common cracking methods the main network administrator often encounters various password loss problems when maintaining and using the computer. Here, we have prepared some methods for the majority of network administrators to crack the password, but I hope you will not do anything bad. The boot password is the first one we need to deal with, so we should start with the CMOS password cracking. Although there are different types of CMOS, their encryption methods are basically the same. Generally, the method of cracking mainly involves two aspects: hard and soft.
I. To use a computer for CMOS password cracking, start the system first. Therefore, the boot password is the first one we need to meet. Although there are different types of CMOS, their encryption methods are basically the same. Generally, the method of cracking mainly involves two aspects: hard and soft. 1. Hard Release Method
The hardware method to remove the CMOS password is to discharge the CMOSRAM on the motherboard, so that the parameters stored in the CMOSRAM cannot be properly supplied, leading to content loss, thus canceling the CMOS password. Some newspapers have introduced many common practices on how to crack the CMOS password, such as patch cord transient connection method and battery transient connection method, which is very convenient to operate. But here we want to introduce an alternative technique, which is also a favorite method of computer DIY. The method is also very simple: Open the chassis, unplug the hard drive, optical drive, and soft drive data lines from the motherboard, and then start the computer, the BIOS will report an error during self-check and automatically enter the CMOS, now you can reset the BIOS content. 2. "soft" Release Method
Strictly speaking, the "soft" Release of the CMOS password is not as thorough as the "hard" release method, but it also works very well. The CMOS password can be set to common and super user passwords as needed. The former only limits the modification of the BIOS. It can start the computer and run various types of software normally, while the latter completely prohibits the entry into the computer and BIOS.
1) crack the password of a common user
Start the computer with a DOS boot disk and enter the DOS Status. Enter debug and press enter in the doscommand line. Then, use any of the methods listed to unbind the CMOS password and restart the computer, the system will tell you that the CMOS parameter is missing and you need to reset the CMOS parameter. After testing, this is a very effective method. The letter "O" after "-" indicates the output address of the numeric value. Both 70 and 10 are numerical values. 2) crack the superuser password. here we need to use external tools. We use the most classic BiosPwds, which is a free software. It is suitable for computer users who are not familiar with DOS. It has been well known for a long time ago, the user's CMOS password is displayed. The latest tool version is 1.21 kb, free of charge: http://bj2.onlinedown.net/soft/8107.htm. After downloading and decompressing the package, double-click the execution file of the software and click "Getpasswords" on the displayed page. After two or three seconds, the BIOS information is displayed on the BiosPwds page, including the Bios version, Bios date, and password, you can easily learn the BIOS password.
Ii. Cracking system passwords
The system password is used when you log on to the operating system. It provides security protection for your computer and can protect your computer from illegal users, this ensures the security of computers and confidential data. 1. Windows 98/ME system logon Password
① The simplest method to cancel is to enter a password when logging on to the system. You do not need to enter anything. Click Cancel to enter the operating system. However, this method can only access resources on the local machine. If the computer is part of the LAN, you will not be able to access network resources.
② New users when you are blocked from the system due to password issues, you may wish to add another user to the system and then log on again. In the same way, you can log on to the system and access system or network resources. Click Start, set, and control panel. Double-click User to open the user Attributes dialog box. Enter the user name, password, and personalized project settings as prompted, and click Finish ". ③ Delete the "PWL" file and delete. the PWL password file and all the personal information files in the Profiles subdirectory, and then restart Windows, the system will pop up a password setting box that does not contain any user name, we do not need to enter any content, click "OK" to delete the Windows Password. ④ Modify the registry and run the Registry Editor. Open "username" under the Registry Database "HKEY_LOCAL_MACHINE \ Network \ Logon" branch and change it to "0". Then restart the system, you can also remove the password.
2. Crack the WindowsNT password. If you have a common user account, there is a simple way to get the NTAdministrator account: first change the logon.scrname under c: \ winntsystem32to logon.oldname, and then change usrmgr.exe to logon. scr and restart. Logon. scr is a program loaded during system startup. After the system is restarted, the User Manager does not display the previous logon password input interface. In this case, you have the permission to add yourself to the Administrator group.
3. start the computer or boot into another operating system (such as Windows 98) on the Windows Password boot disk, and find the folder "X: \ DocumentsandSettings \ Administrator" (X is the drive letter of the disk where windows is located ), delete the "Cookies" folder in this folder and restart your computer. Then, you can log on to Windows2000 with a blank password.
4. crack the password of Windows XP press F8 to select the safe mode with command line when Windows XP is started. You can use the net command to perform operations on the user identity. The procedure is as follows: run the "netuserabcd/add" command to add a user named abcd. Run the "netlocalgroupadministratorsabcd/add" command to promote the user abcd to the Administrator and restart the computer, log On As an abcd user and modify the password of the user who forgets the password.