What is the term for malicious code that executes only when certain conditions are met?

The term "Logic Bomb" refers to malicious code that is programmed to execute under specific conditions or triggers. This type of code remains dormant until the predefined conditions are met, at which point it can carry out damaging actions such as deleting files, corrupting data, or launching additional malware. Logic bombs are particularly insidious because they can go undetected for long periods, making them more challenging to defend against.

In contrast, an "Easter Egg" refers to a hidden feature or novelty within a program, intended as a playful surprise rather than malicious intent. "Exploit Technique" is a broader term that encompasses various methods used to take advantage of vulnerabilities in systems, but does not specifically indicate a condition-based attack. A "Dropper" is a type of malware designed to install additional malicious software onto a system, but it does not execute based on specific conditions; instead, it generally operates at the time of the installation. Therefore, the specificity of "Logic Bomb" regarding its conditional execution makes it the correct choice for this question.