![]() The person who installed the keylogger must later return and physically remove the device to access the gathered information. When the user types on the keyboard, the keylogger collects each keystroke and saves it as text in its own hard drive, which may have a memory capacity up to several gigabytes. A hardware keylogger may also come in the form of a module that is installed inside the keyboard itself. Most workstation keyboards plug into the back of the computer, keeping the connections out of the user's line of sight. Hardware and software keyloggers work differently due to their medium. How a keylogger works depends on its type. The rootkit can launch and operate stealthily to evade manual detection or antivirus scans. It can be purposefully downloaded by someone who wants to monitor activity on a particular computer, or it can be malware downloaded unwittingly and executed as part of a rootkit or remote administration Trojan (RAT). The device is designed to resemble an ordinary keyboard PS/2 connector, part of the computer cabling or a USB adaptor, making it relatively easy for someone who wants to monitor a user's behavior to hide the device.Ī keylogging software program does not require physical access to the user's computer for installation.
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