1._____________ is a on-self-replicating type of malware program containing malicious code. ___________ are frequently disguised as helpful, interesting, or necessary pieces of software, such as readme.exe files often included with shareware or freeware packages.

		Viruses
		Worms
		Trojan horses
		Back doors
		Logic bombs

2. Identify the one that is not a common type of Trojan malware.

		Backdoor Trojan
		Distributed Denial of Service (DDoS) attack Trojan
		Downloader Trojan
		Phreaker Trojan

3. There are numerous Trojan horse attacks. Among them, ________________ take down a network by flooding attack with traffic. That traffic comes from your infected computer and others.

4. According to a report by Webroot, polymorphism was one of the trends of 2016 and 94% of malware found by Webroot was seen only once. Explain why certain malware was seen only once?

5. Explain why virus and worm hoaxes are not dangerous.