Virus (Trojan Horse and Salami Attack)

Coursework ICT FORM 4

1. VIRUS TROJAN HORSE SALAMI ATTACK PRESENTED BY : ABDUL KARIM BIN ZAKARIA

2. Definition of Virus A program designed to attach itself to a file, reproduce, and spread from one file to another, destroying data, displaying an irritating message, or otherwise disrupting computer operations.

3. A computer virus infection may cause the following problems :-

4. TYPE OF VIRUS - Not all computer viruses behave, replicate, or infect the same way. There are several different categories of viruses and malware. Example of viruses are :

5. TROJAN HORSE Trojan horse is a standalone malicious program designed to give full control of infected PC to another PC. It can also perform other typical computer virus activities. Trojan horses can make copies of themselves, steal information, or harm their host computer systems. A Trojan gives a hacker remote access to a targeted computer system. Once a Trojan has been installed on a targeted computer system, the hacker has remote access to the computer and can perform all kinds of operations.

6. Operations that could be performed by a hacker on a targeted computer system include : 1. electronic money theft 2. Data theft 3. Installation of software, including third-party malware 4. Modification or deletion of files 5 . Keystroke logging 6 . Watching the user's screen 7 . Anonymizing internet viewing 8. Downloading or uploading of files on the user's computer

7. SALAMI ATTACK A  salami attack   is a series of minor computer crimes that together results in a larger crime. Typically, this type of crime is hard to detect and trace. The most typical scheme portrayed by a salami attack is that which involves an automated modification to financial systems and their data.

8. Example of Salami Attack A fraud activity in a bank where an employee steals a small amount of funds from several accounts, can be considered a   salami attack .

9. conclusion Computer virus can affect the computer system. It can copy itself and infect a computer without permissions or knowledge of the user . So we need anti-virus to protect our computer and beware when download something.

10. REFERENCES 1. www.wikipedia.org 2. www.scibd.com 3. www.slideshare.net 4. www.websters-online-dictionary.org 5. www. wiki.answers.com 6. www.webopedia.com 7. www. antivirus-software.topchoicereviews.com