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Extracting Administrator Passwords Using LCP

Extracting Administrator Passwords Using LCP

Link Control Protocol (LCP) is part of the Point-to-Point (PPP) protocol In PPP
communications, both the sending and receiving devices send out LCP packets to
determine specific information required for data transmission.

■ Use an LCP tool
■ Crack administrator passwords

Tools Needed

■ A computer running Windows Server 2012
■ A web browser with an Internet connection
■ Administrative privileges to run tools              

■ You can also download the latest version of LCP from the link

■ If you decide to download the latest version, then screenshots shown
    might differ
■ Follow the wizard driven installation instructions
■ Run this tool in Windows Server 2012
■ Administrative privileges to run tools
■ TCP/IP settings correctly configured and an accessible DNS server

Overview of LCP

LCP program mainly audits user account passwords and recovers them in
Windows 2008 and 2003. General features of this protocol are password recovery,
brute force session distribution, account information importing, and hashing. It can be used to test password security, or to recover lost passwords. The program can
import from the local (or remote) computer, or by loading a SAM, LC, LCS,
Pw Dump or Sniff file. LCP supports dictionary attack, brute force attack, as well as a
hybrid of dictionary and brute force attacks.

1. Launch the Start menu by hovering the mouse cursor on the lower-left corner of the desktop.

2.  Click the  LCP  app to launch  LC

3.  The  LCP  main window appears.

4.  From the menu bar, select  Import  and then  Import from  remote computer.

5.  Select  Computer name or IP address,  select the  Import               type  as  Import from  registry,  and click  OK.

6.  The  output window appears.

7.  Now select any  User Name  and click the Play button.

8.  This action generates passwords.

Document all the IP addresses and passwords extracted for respective IP addresses.

Use this tool only for Educational purposes.


  1. hey...I have installed LCP on my laptop and when I selected "import from remote computer" and entered the IP address,it showed an error message "Failed to connect to the registry on remote computer \\xxx.xx.xx.xx The network path was not found".
    What shall i do now>Please help.

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