Monday, November 19, 2012

keylogger | How keylogger works?

A keylogger is hardware device or a software program which is used for storing the activities of the any computer like its keystrokes or some passwords or credit card information of the user.
 Keylogger are mainly used in IT organizations for troubleshooting problems with their computer or networking. Also it is used for family or business purposes to know the network usage of the person using their system without their direct knowledge.

A keylogger stores the keystrokes information of the user and there are also some keyloggers which also captures screen with storing keystrokes.Some keyloggers are provided free on the internet but they do not have advanced features and some keylogger are private and commercial applications.
 Some keylogger stores the information on  the hard drive of that computer,but some  keylogger are programmed to transmit the data over the network to a remote computer or to a particular webservers like through e-mail.

Detection of the presence of the keylogger in the system is very difficult aspect.So,a program called anti-keylogging is developed to thwart the keylogging system and they are effective if they been used properly.

Normally as we have seen that on websites of different banks they usually provide us with virtual keyboard on login pages of net banking and there we need not to press any key and we made keylogger failed at that time.
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