What is a program that appears to be a legitimate application utility game or screensaver but performs malicious activities surreptitiously?

A program that performs a malicious activity at a specific time or after a triggering event.

A logic bomb is a program that performs a malicious activity at a specific time or after a triggering event. Logic bombs can be planted by a virus, a Trojan horse, or an intruder. Logic bombs may perform their malicious activity at a specific time and date or when a specific event occurs on the system, such as logging in, accessing an online bank account, or encrypting a file.

A type of malicious code similar to a virus whose primary purpose is to duplicate itself and spread, while not necessarily intentionally damaging or destroying resources, is a worm.

A program that appears to be a legitimate application, utility, game, or screensaver that performs malicious activities surreptitiously is a Trojan horse.

A program that has no useful purpose but attempts to spread itself to other systems and often damages resources on the systems where it is found is a virus.

Which kind of malware provides an attacker with administrative control?

Which type of virus operates only in memory and usually exploits a trusted application like powershell to circumvent traditional endpoint security solutions?

Which type of malware do the zombie computers represent?

Which type of malware monitors your actions?