computer virus

(redirected from Boot virus)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to Boot virus: Macro virus

vi•rus

(ˈvaɪ rəs)

n., pl. -rus•es.
1. 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.
2. a disease caused by a virus.
3. a corrupting influence on morals or the intellect; poison.
4. a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network.
[1590–1600; < Latin vīrus slime, poison; akin to ooze2]
vi′rus•like`, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.computer virus - a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computercomputer 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"
malevolent program - a computer program designed to have undesirable or harmful effects
Translations
فيروس كمبيوتر
számítógépes vírus
computervirus
počítačový vírus
References in periodicals archive ?
While this utility can be used for burning in systems with no OS, recovering files to network shares, and for performing dean boot virus scans, its usefulness extends far beyond that.
A boot virus infects the boot sector of a system's hard drive and replaces the boot code with infected code, allowing the virus to take control of the computer the next time it is booted up.
There are two types: the boot virus - the most common type - which prevents the user from booting up their system, and the file virus, which becomes active only when you execute a program.