8 common types of computer viruses essay

types of computer virus and definition each type

What is. This approach does not fool antivirus softwarehowever, especially those which maintain and date cyclic redundancy checks on file changes. Since these would be symmetric keys, stored on the infected host, it is entirely possible to decrypt the final virus, but this is probably not required, since self-modifying code is such a rarity that it may be reason for virus scanners to at least "flag" the file as suspicious.

Thus, it is important to back up your data.

8 common types of computer viruses essay

Some malicious hackers use Trojan horses, logic bombs, and other means to infiltrate computer systems. Science fiction[ edit ] The first known description of a self-reproducing program in a short story occurs in a story by Gregory Benford which describes a computer program called VIRUS which, when installed on a computer with telephone modem dialling capability, randomly dials phone numbers until it hit a modem that is answered by another computer. A computer security risk is any event or action that could cause a loss or damage to computer hardware, software, data, or information. Computer worms are a dangerous virus because they are self-replicating, meaning that they multiply themselves and spread onto other computer networks seeking a lapse in internet security. Some antivirus software cannot detect them. USB drives should be scanned for viruses, and should not be used on infected computers. You should. There are various types of computer viruses, classified in terms of techniques, origin, the types of files affected, damage, OS or Platform attacked, as well as the places they hide. Some viruses trick antivirus software by intercepting its requests to the operating system. The television series 24 is an action drama featuring a make believe personality known as Jack Bauer. They only computers used were expert computers which were locked in laboratories around the world. It is an executable code able to reproduce itself. Macintosh computers are so much better and easier to use than a PC. It is a trend that is becoming in information technology, is considered as the intrinsic to manage the business of the company

It may display a political or false message very few times. Inthe first hacker-made virus came into existence and spread through Apple floppy drives.

In early ransome attacks files where often simply hidden from the viewers and a monetary payment was requested to un-do the changes.

10 types of computer viruses

Some companies intentionally add virus in the software. Some viruses employ techniques that make detection by means of signatures difficult but probably not impossible.

most common types of computer viruses

Technological innovation is very essential to any lifestyle to flourish.

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Essay on Computer Viruses