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This article mainly shows you "what are the password cracking skills in the Internet". The content is easy to understand and clear. I hope it can help you solve your doubts. Let the editor lead you to study and learn this article "what are the password cracking skills in the Internet?"

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I. CMOS password cracking

To use a computer, you need to turn it on first. So the power-on password is the first thing we have to encounter. Although there are different kinds of CMOS, their encryption methods are basically the same. The general cracking methods are mainly from two aspects: "hard" and "soft".

1. "hard" release method

The hardware method to remove the CMOS password principle is to discharge the CMOSRAM on the motherboard, so that the parameters stored in the CMOSRAM can not get normal power supply, resulting in the loss of content, thus achieving the purpose of removing the CMOS password. Some newspapers and periodicals have introduced how to crack the CMOS password, such as jumper short connection and battery short connection, and it is also very convenient to operate. But what we want to introduce here is an alternative technique, which is also a method that some computer DIY like to use. The method is also very simple: open the chassis, unplug the data cable of the hard disk, optical drive or floppy drive from the motherboard, and then start the computer. BIOS will report an error during the self-test and automatically enter CMOS, and you can reset the BIOS content.

2. "soft" release method

Strictly speaking, "soft" de-CMOS passwords are not as thorough as "hard" de-passwords, but they are also very effective. According to the need, CMOS password can be set to ordinary user password and superuser password. The former only restricts the modification of BIOS, which can start the computer and run all kinds of software normally, while the latter completely forbids access to the computer and BIOS.

1) crack the password of ordinary users

First of all, start the computer with the DOS boot disk, enter the DOS state, enter debug enter on the DOS command line, then remove the CMOS password with the data of any of the methods listed, restart the computer, and the system will tell you that the CMOS parameters are missing and require you to reset the CMOS parameters. After experiments, this is a very effective method. "-" followed by the letter "O", indicates the address of the numeric output, 70 and 10 are numeric values.

2) crack the superuser password

Here we need to use external tools. We choose the most classic BiosPwds, which is a free software, which is more suitable for computer users who are not familiar with DOS. It has been known to people for a long time, and the user's CMOS password will be displayed with one click. The latest version of the tool, 1.21127KB, is available for free download at http://bj2.onlinedown.net/soft/8107.htm. After downloading and decompressing, double-click the execution file of the software, click the "Getpasswords" button in the interface that appears, and wait two or three seconds before the BIOS information will be displayed on the BiosPwds interface, including: Bios version, Bios date, password, etc., then you can easily know the BIOS password.

Second, crack the system password

The system password is the password you use when you log in to the operating system. It provides a kind of security protection for your computer, which can protect your computer from illegal users, thus ensuring the security of your computer and confidential data.

1. Crack the WindowsNT password

If you have a regular user account, there is an easy way to get a NTAdministrator account: first rename logon.scr under c:\ winntsystem32 to logon.old backup, then rename usrm  gr.exe to logon.scr and restart. Logon.scr is a program that is loaded when the system starts. After restarting, it will not appear the previous login password input interface, but the user manager, and you will have the right to add yourself to the Administrator group.

2. Windows2000 password

Boot disk to boot the computer or boot into another operating system (such as Windows98), find the folder "X:\ DocumentsandSettings\ Administrator" (X is the letter of the disk where Windows2000 is located), delete the "Cookies" folder under this folder, and then restart the computer, that is, you can quickly log in to Windows2000 with an empty password.

3. Crack the password of WindowsXP

Press F8 to select the security mode with the command line when starting WindowsXP, and you can use the net command to manipulate the user's identity. The specific steps are as follows: use the command "net user abcd/add" to add a user named abcd, use the command "net localgroupadministrators abcd/add" to promote the user abcd to administrator, restart the computer, log in as abcd, and finally change the password for the user who has forgotten his password. Or press the ctrl+alt+ del key twice, enter administrator, empty password (if not set, the default is empty) to enter.

Third, crack several commonly used software passwords

At present, more and more users know how to use computer software to encrypt some of the information stored in their computers, so that people who have no right to read can not easily open these important materials. Let's take a look at the release of several commonly used software passwords:

1. Crack the WPS series password

If you are a legitimate user, when you forget your password, start the WPS program and click the "File" / "password Settings" menu. In the password setting dialog box that appears, you can see that the original password will automatically appear in the "password" text box with a "" number. Click the "clear" button, and then click the "confirm" button in the prompt box that appears subsequently. If you open the file again in the future, you will no longer need to enter a password. If you are not a legitimate user, you can only use the relevant tools to crack it. Now there are many software to crack the WPS password, but in terms of its powerful function, the speed of cracking is about to count the domestic EdwardsWPS2000PasswordRecovery. This tool cracked the WPS password using the common method of cracking the password-exhaustive method. The steps to use are as follows: first, add the WPS encrypted file that needs to be cracked through the "browse" button on the right in the text box of "EncryptedWPS2000file" in the program interface; then select the password cracking method. The software has the following password cracking methods: Brute-force (strong *), Dictionary (dictionary * *), mask (mask search) and so on. Generally, the "Brute-force" method is chosen. Then, in the "Brute-forceRangeOptions" list box, select the range of passwords that may be included in the password, such as uppercase and lowercase letters, numbers, spaces, special characters, etc., in addition, specify the password length, such as 6 digits or more; finally, when the above settings are complete, please click the "RUN" option, the password can be cracked quickly.

two。 Crack the password of Word document

Maybe Microsoft's Office is too eye-catching, and there are a lot of cracking software for it. Let's take a look at how to crack its document password. We choose a domestic software "97/2000/XP password Viewer", which is a miniature simplified Chinese Word password removal software with only 29KB size. This software does not need to be installed, double-click the executable file. The tool can crack the full range of Windows9X/NT/2000/XP document passwords, can find up to 13-digit passwords (the unregistered version only supports 3 digits), and use the "dictionary" exhaustive method to crack. When in use, click the "File" / "Open" command to add the document to be cracked; set the password type in the "Task Properties", and it is recommended to select all the options; fill in the password length; click "OK" to return to the main interface, and select "Operation" / "start cracking command to crack the password. Or you can use the office password cracker.

3. Cracking Excel documents

We chose a tool called AdvancedExcel97PasswordRecovery, 614K, the latest version 1.01, which can quickly crack the password of Excel files. AdvancedExcel97PasswordRecovery needs to be installed after downloading, and after installation, open the main interface of the program, open the spreadsheet document that needs to be decrypted through the browse button, select the password length, set the password type, and finally click the blue start cracking button. After a while, the prompt menu of the document password will pop up.

4. Crack the QQ password

We use a tool called OICQ password Terminator. The steps to use are as follows: first, set the installation directory of your OICQ; then select the character set for the search, such as the lowercase character set above, select the check box before the lowercase letter or select all the boxes below the basic Settings; then set the number of digits for the search password, which is not too long, such as 8 digits, which will take a long time. I wonder if you have patience. Finally, click the "start" button to crack the password of OICQ. According to online experts, the exhaustive speed of Oicqpassovcr can reach thousands of times per second. If the QQ password you want to crack is only 4-5 digits, I think Oicqpassover can crack the password in a few minutes.

Fourth, crack the network password

The network is coming into our daily life quietly and rapidly. However, as ordinary network users, people have a common concern, that is, the hidden dangers of network security. As a result, effective measures have to be taken to protect personal network activities-plus various passwords. But once these passwords are forgotten, it becomes a big hindrance to our work. Here are some tips for cracking network passwords.

1. Crack online accounts and passwords

As a bridge for daily surfing the Internet, each of us needs to set up our online account and password when surfing the Internet, so that we can log on to the network. It is not very difficult, even easy, to use some tools and software to get an account. Here we use a tool called GetIP, which is a "password" identification software designed and developed by Chinese Liu Ji. GetIP can help us restore the password "*" number that represents the password to the real password. If you need the software, you can download it free of charge from the author's home page http://brain.zb169.net/. GetIP is very easy to use, run the GetIP.exe executable file, appear the program interface, point the mouse to "click (magnifying glass) and drag", drag and move with the mouse to the desired password, the real password will be immediately reflected in the "text" box.

two。 Crack the IE hierarchical censorship password

The IE browser provides a hierarchical review function, which can filter some web pages under the user's settings, and only the users who know the password of the hierarchical review function can view the information of the relevant web pages. What if you forget the password for the hierarchical review function, not only cannot access the restricted site, but also cannot change the existing restriction level, and it is useless to reinstall IE? Start the registry editor, find the "HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ policies\ Ratings" subkey, and find a key value called "KEY", which is that the user sets the IE hierarchical audit password (the data is encrypted). The user only needs to delete the key value to cancel the hierarchical audit password, and then reset the IE hierarchical audit password.

3. Crack the Foxmail password

There are quite a number of users who use simple but powerful Foxmail as email receiving tools. However, due to the security risks of Foxmail itself, some people only need to create a new account, enter the default installation directory of Foxmail, copy the "account.stg" file under the new account directory and overwrite your account file, and the password of your account will be cleared.

The above is all the contents of this article entitled "what are the password cracking techniques in the Internet?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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