1. DEFINITION OF VIRUS A virus is an infectious program which
affects computer systems and data. Viruses are spread to any other
programs they contact, thus being infectious. A virus will attach a
copy of itself to an executable program. Usually attaches with
.doc,.xls and exe extensions
2. TYPES OF VIRUS Worm Trapdoor Backdoor Trojan Horse Salami
Attack Logic Bomb Internet time theft
3. TROJAN HORSE A program in which malicious or harmful code is
contained inside apparently harmless programming or data. The
software initially appears to perform a desirable function for the
user prior to installation and/or execution.Trojan Horse attacks
pose one of the most serious threats to computer security.
4. TYPES OF TROJAN HORSE Remote Access Trojan Data Sending
Trojan Proxy Trojan Destructive Trojan FTP Trojan Denial-of-service
attack(DoS)
5. SALAMI ATTACK A salami attack is a series of minor data-
security attacks that together results in a larger attack. Crimes
involving salami attacks typically are difficult to detect and
trace. The salami technique can also refer to aggregating small
amounts of information from many sources to derive an overall
picture of an organization.
6. HOW TO COMBAT VIRUS Ensure that your operating system is up-
to-date. Have an antivirus installed on your system and ensure you
download updates frequently to ensure your software has the latest
fixes for new viruses, worms, and Trojan horses. Install a firewall
to prevents unauthorized use and access to your computer.
7. CONCLUSION Viruses are dangerous. You can maintain a
relatively safe computer with a little bit of understanding and
vigilance. Research any new viruses you hear about to make sure
that the threat is real.
8. SOURCES http://www.support.psi.com/support/spart/virus.ht ml
http://www.webopedia.com/DidYouKnow/Internet/ 2004/virus.asp
http://virus-informati0n.blogspot.com/ An Introduction To
Keylogger, RATS And Malware written by Rafay Baloch Teachers
Handouts:Introduction to Information and Communication
Technology
9. Group Members:Neville Quinn James(4F)Muhd Saiful
Nizam(4F)
