Which type of malware builds a network of contaminated computers?

Question

Options

• ALogic Bomb
• BStorm Worm or Botnet
• CTrojan
• DVirus

• A
  8% (4)
• B
  70% (35)
• C
  18% (9)
• D
  4% (2)

Explanation

Storm Worm / Botnet (B) is correct because a botnet is specifically designed to infect and recruit large numbers of computers into a coordinated network (called a "bot army") controlled remotely by an attacker - this is literally its defining purpose.

Why the others are wrong:

• Logic Bomb (A): Sits dormant until a trigger condition is met (e.g., a date or event), then executes - it doesn't spread or recruit machines.
• Trojan (C): Disguises itself as legitimate software to trick users into running it, but does not self-propagate to build a network.
• Virus (D): Self-replicates by attaching to files, but its goal is spreading/damaging files - not commanding a coordinated network of machines.

Memory tip: Think "botnet" = network of robots. The "net" in botnet literally tells you it builds a network. If an exam question mentions a "network of infected/zombie computers," the answer is always botnet.

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