CERTIFIED-IN-CYBERSECURITY Question #109: Real Exam Question with Answer & Explanation

Question

Which of these types of malware self-replicates without the need for human intervention?

Options

• AWorm
• BVirus
• CTrojan
• DRootkits

Explanation

A worm is a type of malware designed to replicate itself and spread to other computers without human intervention. Worms exploit operating systems, network servers and other software vulnerabilities in order to propagate themselves. They can cause various damaging effects, including disrupting network performance, consuming bandwidth, and stealing sensitive information (see ISC2 Study Guide, chapter 4, module 2). Some worms can also perform directly malicious actions, such as installing rootkits, backdoors or other malicious software on the systems they infect. Viruses, like worms, replicate themselves and exploit vulnerabilities in systems or software to propagate themselves. However, viruses typically require human intervention (like being activated from an e-mail or downloaded from the internet to be run on a system). On the other hand, Trojans do not replicate themselves, and typically rely on human intervention to be delivered and installed. Finally, rootkits are malware that conceals the presence of other malicious software (such as viruses or Trojans) on a system, namely by hiding their files, processes, and other system artifacts.

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