Fgdump 2.1.0 And Pwdump 1.7.1 Released Dump LanMan NTLM Hashes
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How to Use fgdump and pwdump to Extract Windows Password Hashes
If you want to test the security of your Windows system or recover the passwords of users who share the same computer, you may need to use tools like fgdump and pwdump. These are command-line utilities that can dump the LanMan and NTLM hashes of the stored credentials on a Windows machine.
In this article, we will explain what fgdump and pwdump are, how they work, and how to use them effectively.
What are fgdump and pwdump
fgdump and pwdump are password hash dumpers for Windows 2000 and later systems. They are capable of extracting the LanMan and NTLM hashes of the passwords stored in the Security Accounts Manager (SAM) database, as well as the password hash histories if they are available.
LanMan and NTLM are two types of encryption algorithms used by Windows to protect user passwords. LanMan is an older and weaker algorithm that is vulnerable to brute-force attacks. NTLM is a newer and stronger algorithm that is more resistant to cracking.
fgdump and pwdump output the data in a format that is compatible with L0phtCrack, a popular password cracking tool. They can also write the data to an output file for further analysis.
How do fgdump and pwdump work
fgdump and pwdump work by accessing the SAM database file, which is usually located at C:\\Windows\\System32\\config\\SAM. This file contains the encrypted passwords of all the users on the system.
However, this file is locked by the system and cannot be read directly. Therefore, fgdump and pwdump use various techniques to bypass this protection, such as injecting code into the LSASS process, using backup APIs, or exploiting vulnerabilities.
Once they have access to the SAM file, they decrypt the passwords using the SYSKEY encryption key, which is derived from a secret value stored in the registry. They then display or save the hashes of the passwords along with the usernames.
How to use fgdump and pwdump
To use fgdump and pwdump, you need to have at least administrator-level access to the system you want to dump. You also need to disable or bypass any antivirus software that may block or interfere with these tools.
You can download fgdump 2.1.0 and pwdump 1.7.1 from their official websites or from other sources. You can then run them from a command prompt or a script with various options and parameters.
For example, to dump the local passwords using fgdump, you can simply run it without any arguments:
fgdump.exe
This will create a file named [hostname].pwdump in the same directory as fgdump.exe, containing the usernames and hashes of all local users.
To dump the passwords of a remote system using pwdump, you can specify the hostname or IP address of the target machine as an argument:
pwdump.exe 192.168.1.100
This will display the usernames and hashes of all users on the remote system on the screen.
You can also use other options and parameters to customize your dumping process, such as setting the number of parallel threads, skipping cache dumps, logging all output details to file, attempting to shut down antivirus tools, etc. You can refer to the help or documentation of each tool for more information.
Conclusion
fgdump and pwdump are powerful tools for extracting Windows password hashes. They can help you test the security of your system or recover lost passwords. However, they can also be used for malicious purposes by hackers or attackers who want to compromise your system or steal your credentials.
Therefore, you should always use these tools with caution and permission, and protect your system from unauthorized access by using strong passwords, enabling encryption, updating your software, installing antivirus software, etc. aa16f39245