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Shodan , computer search engine…..

October 22, 2010

SHODAN is a search engine that lets you find specific computers (routers, servers, etc.) using a variety of filters. Some have also described it as a public port scan directory or a search engine of banners.Rather than to locate specific content on a particular search term, SHODAN is designed to help the user find specific nodes (desktops, servers, routers, switches, etc.) with specific content in their banners.

Web search engines, such as Google and Bing, are great for finding websites. But what if you’re interested in finding computers running a certain piece of software (such as Apache)? Or if you want to know which version of Microsoft IIS is the most popular? Or you want to see how many anonymous FTP servers there are? Maybe a new vulnerability came out and you want to see how many hosts it could infect? Traditional web search engines don’t let you answer those questions.

Much like Google and other search engines, SHODAN also lets you use boolean operators (‘+’, ‘-‘ and ‘|’) to include/ exclude certain terms. By default, every search term has a ‘+’ operator assigned to it. Shodan search can be narrow by filtering it by country , hostname , net , operating system that it used , port , and there are also SSL filters.

To use the additional features like filters when queiring a search , you need to have a user account and log in. After you log in , you can use search filters like country , specify your country and it will seacrh only in your specific country zone.  Shodan is great for penetration testing . Shodan had been presented in Shmoocon 2010 , a hackers conference talk that was held in United States. The talk was great and it shows how we can hack Cisco router and switch password and enter their webgui setup.  But this is only work for default password , as the user have to guess it..

Well , for all your guys out there who wanna try it , here is the website:-

http://www.shodanhq.com/

Till then , have fun guys….

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