Computer Viruses3 essays

Computer Viruses3 essays Almost every End-user in the world has heard of computer viruses and/or has had one at one point in time. Dont worry if you havent heard about them, you wont find it in your bloodstream. Unfortunately you may find one in your computer memory or disk storage. Some may be as benign as the common cold and others as deadly to your hard drive as the Ebola virus . ~ Usually defined as a malicious code of computer programming it is actually just another software, only written with not so noble intentions. ~ A computer virus is designed to install, reproduce itself and cause damage to computer files and data without the users knowledge or permission. ~ A computer virus can only survive and attack in computer memory, which is usually RAM and disk storage. ~ You will not find a computer virus in your monitor or keyboard. How will the virus invade your computer? ~ All viruses enter the system through two main points. ~ Disk drives may be any type (hard, floppy, CD and whatever you have). This makes anything you insert in your drive a possible source of infection. ~ The network adapter card is most likely your connection to the Internet. Viruses enter here most likely disguised as e-mail attachments. These attachments are often program files and office documents containing macros. Besides e-mail attachments, there are certain WebPages that contain harmful programming codes that may transfer into your computer as virus or virus-like codes. ~ After entering the computer memory, A virus often immediately sets out to multiply and spread duplicate copies of itself across the main data storage device. It does this by copying itself into as many files as it can on the disk drive. Later when users transfer or copy these files to their friends and colleagues, the virus can gain entry to all of their systems. If the virus has come this far on its path, the user may have permanent damage ...