What is a keylogger and what are the types?


Key logger-"A key logger, or keystroke logger, is a piece or hardware of software
which records user keystrokes".Keylogger is an invisible monitoring tool that records every
keystroke to an encrypted and hidden log file.Keylogger also monitors internet activity by
 logging the addresses of all visited websites.Take screenshot, video or application monitoring.
The log file can be sent secretly via email or uploaded to FTP, or another PC via network.
There are two types of key loggers
(A) Software key logger-Software key logger has a additional  ability to take screenshot,
 video, application monitoring and many other features  like remote access and installation.
The main advantage of software key logger is if you can exploit a software vulnerability, a
 configuration error, or user gullability, you can install a software key logger remotely.Good
 key logger always use very little memory . A good key logger also hide itself from the Task
List and from the Uninstall List. Key logger should be invisible to the person being monitored.
 A better key logger will support remote installation and the ability to remotely retrieve keystroke
 logs.

(B) Hardware key logger-A hardware key logger is a piece of hardware which is usually
 inserted between the keyboard port and the keyboard. The hardware key logger  records
 all  keystrokes .
You can find many key loggers on the internet according to your needs by googleing .
I have used two key loggers-I found both are good and can work in total stealth mode.
You can use most of the facilities which they gives in a full version in Trail version of 
both key loggers also.So you can try them before purchasing.
Elite key logger( http://widestep.com/)
Because every key logger has its own features so you have to decide what you need . You 
can download the trial version before you purchase.


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