🛡️ Free practice test question from: Malware (Security+)

A Trojan Horse is a type of malware that disguises itself as legitimate or benign software to trick users into installing it. In this scenario, the seemingly legitimate software update for the patient management system was maliciously altered to include a hidden module. This concealed component provided external attackers with unauthorized administrative access, enabling them to manipulate data and monitor system activities covertly.

A) Spyware primarily focuses on collecting user information without their knowledge but does not necessarily grant administrative access or manipulate system functions.

B) Worm is self-replicating malware that spreads across networks without needing to attach to legitimate programs. It typically focuses on propagation rather than providing unauthorized access.

D) Rootkit is designed to hide the presence of certain processes or programs from normal detection methods, allowing continued privileged access. While a rootkit could be involved in hiding the malicious activities, the initial delivery method—disguising the malware as a legitimate software update—is characteristic of a Trojan Horse.