Which of the following tools works both as an encryption-cracking tool and as a keylogger?

Magic Lantern is a covert FBI-developed software tool that acts as a keystroke logger to capture typed passwords and passphrases, and leverages those captured credentials to crack encrypted files or communications. It can be deployed remotely via email or by exploiting vulnerabilities, giving it dual functionality not present in any other tool listed. This dual capability - keylogging combined with encryption cracking - is what distinguishes it as the correct answer.

KeyGhost Keylogger is a hardware-based keystroke recording device only and has no encryption-cracking capability.

Alchemy Remote Executor is a remote administration and task execution tool, not a keylogger or encryption-cracking tool.

SocketShield is a security product designed to block browser-based exploit attacks, not a keylogger or encryption cracker.