Assignment for Virus Defence, computer science homework help

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Yvfn73

Computer Science

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Viruses and Virus Detection Module Assignment

  1. Overwriting file viruses have a limitation. What is it?
  2. Despite limitations, overwriting file viruses has a benefit. What is it?
  3. What are boot viruses?
  4. How do boot viruses infect a machine?
  5. Describe how an appending virus might infect a file?
  6. What is a cavity virus? What is the advantage of this technique?
  7. Commander Bomber had a novel infection strategy. What was it?
  8. What is the purpose of entry point obfuscation?
  9. What is polymorphism with respect to viruses?
  10. When I talk about “encrypted” viruses, I’d say they are not really encrypted. What do I mean by that?
  11. Discuss how testing of anti-malware should be conducted.

Reference book:

  • Chapters 11 and 12 in The Art of Computer Virus Research and Defense, Szor, 2005

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Explanation & Answer

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Viruses and Virus Detection
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Running Head:

1. Overwriting file viruses have a limitation. What is it?

Overwriting viruses refers to the changing or replacement of the contents of the files with
own codes (Little, 2017). The contents of the files that are infected by the viruses are destroyed.
In addition, overwriting file viruses can easily be detected by use of heuristics.

2. Despite limitations, overwriting file viruses has a benefit. What is it?

Overwriting file viruses help overwrite the beginning of the file with own bod and does not
save the original code and almost impossible to remove. Therefore, less than five percent of
these viruses can be disinfected.

3. What are boot viruses?

Boot viruses exploit the boot procedure of personal computers. It Boot-sector viruses taint
PC frameworks by replicating code either to the boot segment on a floppy disk or in other case
the partition table on a hard plate (Yang and Yang, 2014). Amid startup, the viruses are stacked
into memory. Once in memory, the viruses will contaminate any disks that are not yet infected
and can be accessed by the system.

4. How do boot viruses infect a machine?

Boot-sector viruses infect computer systems by copying code either to the boot sector on a
flopp...


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