Key Loggers- Cyber Security

A keylogger is a software or a program to capture keystrokes and other information on the victim

machine while the user is typing on the machine. The information is captured in a covert manner and

is sent to the hacker who might be at a remote location. Keyloggers can be classified into two types:

Software keylogger is a program installed on the victim machine for keylogging. The keylogger can

be installed without the knowledge of the target user by sending is as an attachment to an email or

through other means like virus, worm, or a trojan. Software keyloggers are generally spread as trojans

and viruses. A keylogger generally contains a DLL files and an EXE file.

Hardware keyloggers are small physical devices which can be inserted or attached to target computer

systems or other electronic machines to capture the keystrokes. To install these keyloggers, attackers

need physical access to the target machines. The devices are so small that people might overlook or

detect their presence. These hardware keyloggers are generally installed on ATM machines to capture

the victim's PIN numbers.

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