Virus

Done By:Salha Mohammed Obaid AL-kaabiID:201211567

What is virus?Type of virusTrojan HorsesPopular Trojan horsesWormExample of Worm(Code Red)To keep your computer and data secureType of antivirus softwareReferences

ContentA virus is a small piece of software that piggybacks on real programs.

All viruses are attached to an executable file, which means the virus may exist on your computer but it actually cannot infect your computer unless you run or open the malicious program.

What is Virus?File infector virusInfect program filesBoot sector virusInfect the system area of a diskMaster boot record virusinfect disks in the same manner as boot sector viruses. Multi-partite virusinfect both boot records and program filesMacro virusinfect data files. Examples: Microsoft Office Word, Excel, PowerPoint and Access files

Type of VirusIt is a type of malware that masquerades as a legitimate file or helpful program possibly with the purpose of granting a hacker unauthorized access to a computer.Trojan Horses

Netbus (by Carl-Fredrik Neikter)Subseven or Sub7(by Mobman)Y3K Remote Administration Tool (by Konstantinos & Evangelos Tselentis)Back Orifice (Sir Dystic)BeastZeusThe Blackhole exploit kitFlashback Trojan (Trojan.BackDoor.Flashback)

Popular Trojan horses

Small piece of software that uses computer networks and security holes to replicate itself.Copy itself to the new machine using the security hole and start replicating. The worm has been designed to tunnel into your system and allow malicious users to control your computer remotely.Worm

Code Red made huge headlines in 2001. Code Red designed to do three things: Replicate itself for the first 20 days of each month. Replace web pages on infected servers with a page that declares Hacked by Chinese Launch a concreted attack on the White House Web server

Example of Worm(Code Red) Four steps to keep your computer and your data secure:1. Get the latest Anti-Virus Software.2. Make sure you have the latest security patches and hot fixes using Windows Update.3. Use a Host-Based Firewall.4. Back up your Important Files.

To keep your computer and data secureType of antivirus software

Video about Virus, Worm and Trojan http://www.ust.hk/itsc/antivirus/general/whatis.htmlhttp://www.webopedia.com/DidYouKnow/Internet/2004/virus.asphttp://computer.howstuffworks.com/virus.htm

References