Computer Virus software computer operation computer data delete. an extremely small piece of organic material that causes disease in humans, animals, and plants: 2. a disease caused by a virus: 3. a computer program or part of a computer program that can make copies of itself and is intended to prevent the computer from working normally. See the latest information on computer virus attacks and their removal. McAfee is the leader in internet security and virus detection. Keep up to date on the most recent virus threats, recently discovered viruses and recently updated viruses. Definition of computer virus: Small but insidious piece of programmingcode that attacks computer and network systems through 'contaminated' (infected) data files, introduced into a. A computer worm is a type of malicious software program whose primary function is to infect other computers while remaining active on infected systems. A computer worm is selfreplicating malware. Definition: In computer technology, viruses are malicious software programs, a form of malware. By definition, viruses exist on local disk drives and spread from one computer to. virus a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer; a true virus cannot spread to another computer without human assistance TechTerms The Tech Terms Computer Dictionary. This page contains a technical definition of Virus. It explains in computing terminology what Virus means and is one of many software terms in the TechTerms dictionary. A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyberthieves and hackers trying to. A computer virus is a malicious program that selfreplicates by copying itself to another program. In other words, the computer virus spreads by itself into other executable code or documents. The purpose of creating a computer virus is to infect vulnerable systems, gain admin control and steal user sensitive data. This cyber security glossary explains the meaning of terms about different types of computer security threats as well as words about application security, access control, network intrusion detection, security awareness training and computer forensics. Virus definition, an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope. While some pranksters created viruslike programs for large computer systems, it was really the introduction of the personal computer that brought computer viruses to the public's attention. A doctoral student named Fred Cohen was the first to describe selfreplicating programs designed to modify computers as viruses. Avast Free Antivirus raises the bar on security with realtime protection, intelligent threatdetection, and added security for your network, passwords, and browser. Easy to install and easy to use, no other free antivirus comes close. Definition: A computer worm is a malicious, selfreplicating software program (popularly termed as 'malware') which affects the functions of software and hardware programs. Description: It fits the description of a computer virus in many ways. Sie ist kein Virus und enthlt auch keinen viralen Inhalt, sondern ist nur per Definition als Virus zu erkennen. Jeder Virenscanner sollte diese Datei erkennen. Sie kann deswegen benutzt werden, um auf einem System das von keinem Virus infiziert wurde zu testen, ob der Virenscanner korrekt arbeitet. A computer virus is a malicious software program or piece of code created by a hacker to upload onto a users computer without their knowledge for performing malicious actions. Computer viruses are harmful and designed to spread from host to host. A computer virus is a program that replicates by inserting or attaching itself to other computer programs or media and can disrupt a computer system's functional abilities. Protecting your computers from invaders: antivirussoftware powerhouse Symantec offers tips. A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1892 article describing a nonbacterial pathogen infecting tobacco plants, and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898. A computer virus or spyware application is sending us automated requests, and it appears that your computer or network has been infected. A computer virus which affected the operation of Google yesterday is spreading like wildfire. TrojanDownloaders can download and install new versions of malicious programs onto your computer including Trojans and adware. TrojanDropper These programs are used by hackers in order to install Trojans and or viruses or to prevent the detection of malicious programs. A computer virus is malicious code that replicates by copying itself to another program, computer boot sector or document and changes how a computer works. The virus requires someone to knowingly. Think of a biological virus the kind that makes you sick. Its persistently nasty, keeps you from functioning normally, and often requires something powerful to get rid of it. A virus is a type of malicious software (malware) comprised of small pieces of code attached to legitimate programs. When that program runs, the virus runs. Definition of virus noun from the Oxford Advanced Learner's Dictionary My computer has caught some kind of virus, and it wont let me log on to the Internet. The latest virus will attach itself to all the addresses in your email address book. Theres a virus going around the office. A virus is a microscopic parasite which can infect living organisms and cause disease. It can make copies of itself inside another organisms cells. Viruses consist of nucleic acid a protein coat. Usually the nucleic acid is RNA; sometimes it is DNA. by Gonzalo Torres on December 18, 2017 Think of what happens to you when you get the flu: you leave the house unprotected, or get into a crowded train full of infected people, or lick the wrong doorknob, and bam. A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computer viruses are manmade. Some people distinguish between general viruses and worms. see definition of computer virus noun computer bug Relevance ranks synonyms and suggests the best matches based on how closely a synonyms sense matches the sense you selected. simianhuman immunodeficiency virus a chimeric, engineered virus with the envelope of human immunodeficiency virus and the cytoplasm and nucleus of simian immunodeficiency virus; it is used in animal models because it is a better mimic of HIV than SIV is. A polymorphic virus is a complicated computer virus that affects data types and functions. It is a selfencrypted virus designed to avoid detection by a scanner. Upon infection, the polymorphic virus duplicates itself by creating usable, albeit slightly modified, copies of itself. Kids Definition of virus 1: a diseasecausing agent that is too tiny to be seen by the ordinary microscope, that may be a living organism or may be a very special kind of protein molecule, and that can only multiply when inside the cell of an organism Virus og andre slags malware Computervira er blot en af mange former for malware, omend ordet ofte bruges i flng om flere forskellige typer malware. A computer virus might corrupt or delete data on your computer, use your email program to spread itself to other computers, or even erase everything on your hard disk. Computer viruses are often spread by attachments in email messages or instant messaging messages. Definition: A computer virus is a malicious software program loaded onto a users computer without the users knowledge and performs malicious actions. Description: The term 'computer virus' was first formally defined by Fred Cohen in 1983. In computer technology, a virus is a program that introduces itself into a system, altering or destroying the information stored in the system. [ computing Hackers are said to have started a computer virus. A computer virus is a program, script, or macro designed to cause damage, steal personal information, modify data, send email, display messages, or some combination of these actions. When the virus is executed, it spreads by copying itself into or over data files, programs, or boot sector of a computer's hard drive, or potentially anything else writable. A virus is incapable of independent metabolic activity and replication, it must invade a live animal, human, or plant cell from which to derive the energy for survival. For replication, the virus provides only the genetic code and the invaded cell provides the raw material. A computer is a programmable machine. The two principal characteristics of a computer are: It responds to a specific set of instructions in a welldefined manner and it can execute a prerecorded list of instructions (a program). Modern Computers Defined computer virus A program that enters a computer usually without the knowledge of the operator. Some viruses are mild and only cause messages to appear on the screen, but others are destructive and can wipe out the computer's memory or cause more severe damage. Computer Virus is a malicious software program Malware that can infect a computer by modifying or deleting data files, boot sector of a hard disk drive or cases a. A computer virus is an unwanted malicious program designed to cause damage to computers on a large scale. A virus attacks a computer to spread other malware, allows remote control by unauthorized. A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that flu viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document. A computer virus is a program or piece of code that is loaded onto your computer without your knowledge or permission. Some viruses are merely annoying, but most viruses are destructive and designed to infect and gain control over vulnerable systems. Computer definition is one that computes; specifically: a programmable usually electronic device that can store, retrieve, and process data. How to use computer in a sentence. one that computes; specifically: a programmable usually electronic device that can store, retrieve, and process data Antivirus software is a type of utility used for scanning and removing viruses from your computer. While many types of antivirus (or antivirus) programs exist, their primary purpose is to protect computers from viruses and remove any viruses that are found. A computer virus is a program that is able to copy itself when it is run. Often, computer viruses are run as a part of other programs. Biological viruses also work that way, as they copy themselves as part of other organisms. This is how the computer virus got its name. Bill was still smarting from the computer virus that had attacked one of our clients at the beginning of October. Val McDermid KICK BACK ( 2002 ) A computer virus is a program that fastens like a parasite on the computer's working system, and gradually corrupts it. A computer virus functions like a biological virus, affecting a computer's underlying operating code, with results ranging from minor ailments to complete hard drive disasters. Health care for computers: protect your computer and your business from viruses.