Viruses

Question 1

Virus

Answer 1

Malware that can reproduce itself. It needs you to execute a program to unleash it. May or may not cause problems on your computer. Some are invisible, some are annoying.

Question 2

Worm

Answer 2

Can jump from machine to machine on its own. May or may not cause problems on your computer. Some are invisible, some are annoying. Uses the network as a transport medium. Spreads quickly. Firewalls are effective at mitigating unless the worm already got past them.

Question 3

Virus types

Answer 3

Program viruses, Boot sector viruses, Script viruses, Macro viruses,

Question 4

Program viruses

Answer 4

Part of the application, unleashes when you execute the program.

Question 5

Boot sector viruses

Answer 5

A rare virus, it exists in the boot sector of your storage device. When you start up your computer, the virus begins to run.

Question 6

Script viruses

Answer 6

Operating system and browser based scripts

Question 7

Macro viruses

Answer 7

Common in Microsoft Office. Usually running inside another application.

Question 8

Fileless virus

Answer 8

Stealthy virus that is good at avoiding anti-virus. It operates in the memory but is never installed in a file or application. It is never written to the storage. Obtained by link on website or email. Can encrypt, exfiltrate data, delete files, change registry etc.