What type of malicious software captures keystrokes and sends them to a hacker?

The correct answer is B, which refers to a keylogger. A keylogger is a specific type of malicious software designed to track and record the keystrokes made on a computer or device. This data is then sent to a hacker, allowing them to capture sensitive information such as passwords, credit card numbers, and other confidential details that a user may input.

Keyloggers typically operate covertly in the background without the user’s knowledge, making them particularly dangerous. They can be installed through various methods, including phishing attacks, downloading infected files, or exploiting software vulnerabilities. Their primary purpose is to monitor and record everything a user types, which directly aids cybercriminals in harvesting personal information for malicious purposes.

In contrast, the other choices represent different types of malware that do not focus specifically on capturing keystrokes. Spyware generally refers to software that secretly collects user data and information but may not necessarily include keystroke tracking. Rootkits are designed to provide unauthorized access to a computer while masking their presence, and although they might be used in conjunction with keyloggers, they serve a different function. Adware, on the other hand, is primarily software that displays advertisements to users, and while it can sometimes collect data, it does not inherently