Malware Types and Different Detection and Prevention Methods

Abstract

Everyone knows about computer viruses. Just over twenty years ago, the first virus for PCs was written, apparently with the intention of protecting software on old-style floppy disks from bootleggers. Since then, hundreds of thousands of viruses and other malware‖ email viruses, Trojans, internet worms, keystroke loggers have appeared some spreading worldwide and making headlines. Many people have heard about viruses that fill your computer screen with garbage or delete your files. Today, malware is unlikely to delete your hard disk, corrupt your spreadsheet,  or display a message.  Such cyber vandalism has given way to more lucrative exploits. Today‘s virus might encrypt all your files and demand a ransom. Or a hacker might blackmail a large company by threatening to launch a denial of service attack, which prevents customers from accessing their website.