Which IoT malware became famous for turning devices into a botnet to attack external targets?

Which IoT malware became famous for turning devices into a botnet to attack external targets?

• A. IoT Trojans
• B. Security software disabler Trojans
• C. Mirai
• D. Destructive Trojans

Answer: (C)

The idea being tested is malware that turns insecure IoT devices into a botnet to launch attacks on external targets. Mirai fits this perfectly: it infected many IoT devices such as cameras and routers by exploiting default or weak credentials, recruited them into a large botnet, and used that network to overwhelm external targets with distributed denial-of-service traffic. Its notoriety comes from high-profile DDoS incidents (like taking down major sites) that showed how ordinary IoT devices could be weaponized at scale. Other options describe broader or different types of IoT malware—generic IoT Trojans, security-software-disabler Trojans, or destructive Trojans—that don’t center on building a botnet to attack external targets in the same famous way.

The idea being tested is malware that turns insecure IoT devices into a botnet to launch attacks on external targets. Mirai fits this perfectly: it infected many IoT devices such as cameras and routers by exploiting default or weak credentials, recruited them into a large botnet, and used that network to overwhelm external targets with distributed denial-of-service traffic. Its notoriety comes from high-profile DDoS incidents (like taking down major sites) that showed how ordinary IoT devices could be weaponized at scale. Other options describe broader or different types of IoT malware—generic IoT Trojans, security-software-disabler Trojans, or destructive Trojans—that don’t center on building a botnet to attack external targets in the same famous way.