Sunday, 8 September 2013


SCL 2:COMPUTER SOFTWARE

2.Discuss different types of treats and malicious program (malware) that can damage a computer,mobile device or distrupt any system.
Search for information on current known malware program.Based on the information that you have found,create a table to list different types of malware,what it does,and how it can be repaired or removed.These information is useful for you to prevent any malware from damage your computer system.
Types of malware
How it does
How it can be repaired
Viruses
·         Corrupt or delete data on your computer.
·         It makes changes or deletes your data.
·         It can enter to a computer as an attachment of images,greeting or audio/video files.
·         It also enter through download on the internet.
·         Not opening suspicious e-mail or e-mail attachments from unknown or known sender.
·         Not clicking on suspicious Web browser popup windows
·         Not visiting Web sites that are at least somewhat likely to contain malicious content.
·         Not opening file  with fileextensions that are likely tobe associated with malware(example: .bat,.com,.exe,.pif,.vbs)
·         Not disabling the additional security control mechanisms(example: antivirus software,spyware,detection and removal utility,personal firewall)
·         Not using administer-level account for regular operation.
·         Not downloading or executing applications from untrusted sources.
Worms
·         It makes copies of themselves again and again on the local drive,network share and so on.
·         It spread by exploiting vulnerabilities in operating systems.
·         It consumes more cpu uses which in turn makes the pc too slow alsoconsumes more network bandwidth.
Trojan
·         It opens a backdoor entry to your computer which gives malicious program acces to your computer system.
·         It also allowing confidential and personal information to be theft.
                                                                                                                   Written by: Nurul Ain Binti Kamardin

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