Brute Force Attack is the most widely known password cracking method. This attack simply tries to use every possible character combination as a password. To recover a one-character password it is enough to try 26 combinations (‘a’ to ‘z’). It is guaranteed that you will find the password but when? How long will it take? The two-character password will require 26*26=676 combinations. The number of possible combinations grows rapidly as the length of the password increases and therefore the required time it takes to brute force the password also grows. In this video we use hydra to brute force an ssh server once the server is breached we go over some important methods used to defend against such an attack.
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Downoad DenyHosts
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Filed under: Network Security by override
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Nmap is a open source utility for network exploration or security auditing. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. In this video we learn not only how to use Nmap but how Nmap works. We also go over some ways to get around scanning detection software and how to protect you network from being scanned.
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Downoad Nmap Here
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Backtrack 3 and 4 unfortunately does not come with the latest version of Nmap. The newest version of Nmap is 4.76 and includes many updates including Vista OS detection. I made a backtrack module of the newest vision that can be downloaded below.
Nmap 4.76 Backtrack module.
Just add the module into you modules folder ( watch adding a Backtack module video ) and Backtrack will be updated to the newest version of Nmap upon boot.
Filed under: Network Security by override
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This is a preview of some videos to come including some tutorials on port scanning, fuzzing, buffer overflows, and writing you own exploits.
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Filed under: Buffer Overflows by override
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This video describes how network protocols TCP and UDP work and touches on the basics of DNS servers. The video is a prelude to our next video on network mapping and port scanning.
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Download The TCP/IP Pocket Reference Guide Here
Filed under: Network Security by override
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