课程: Securing the IoT: Security Risks
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Propagating IoT worms
- [Instructor] A worm is malware that can propagate without any help from a transport agent. In this segment, we'll learn how an IoT worm can have devastating results. A malware attack can be very destructive. The results can be as simple as launching a pop-up, or more serious results such as disabling antivirus or destroying files. Malware programs fall into one of five different classes. Rootkits provide a backdoor for illegal access to a host. Spyware records keystrokes and other activity and then sends it to a collection site. Trojans appear as a useful program such as a game or utility, but it contains malware. Viruses can self-replicate, yet need a way to propagate to other hosts. And a worm is self-propagating malware that can spread on its own. So let's compare the difference between a virus and a worm. A virus must have a way to travel to another host, such as an email attachment. However, a worm has the ability…
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