Question

briefly explain the effects of malice software and the steps taking by operation systems to prevent them. try to keep the two main catigories parasitic and independant software.

Answer 1

Malice software (malware) can be generally defined as “a set of instructions that run on your computer and make your system do something that allows an attacker to make it do what he wants it to do”. Steps taken to prevent against malacious software:

1. Install and maintain antivirus software.

2. Back up data.

3. Install or enable a firewall

4. Use anti-spyware tools.

2. Two main categories are parasatic and independent:

1. fragments of programs that cannot exist independently of some actual application program, utility, or system program viruses, logic bombs, and backdoors are examples

2. self-contained programs that can be scheduled and run by the operating system worms and botprograms are examples

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