polymorphic virus

polymorphic virus
polimorfinis virusas statusas T sritis informatika apibrėžtis ↑Kompiuterių virusas, kuris plisdamas gali keisti savo baitų seką tam, kad ↑antivirusinės programos negalėtų jo atpažinti. Kai kurie polimorfiniai virusai pakeičia net savo šifravimo algoritmus. Tokie virusai neturi pastovios baitų sekos, todėl labai sunkiai fiksuojami antivirusine įranga. atitikmenys: angl. polymorphic virus ryšiai: dar žiūrėkantivirusinė programa dar žiūrėkfailų virusas dar žiūrėkgerybinis virusas dar žiūrėkkirminas dar žiūrėkkompiuterių virusas dar žiūrėkmakrovirusas dar žiūrėkpaleidimo sektoriaus virusas

Enciklopedinis kompiuterijos žodynas . . 2008.

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  • Polymorphic code — In computer terminology, polymorphic code is code that mutates while keeping the original algorithm intact. This technique is sometimes used by computer viruses, shellcodes and computer worms to hide their presence. Most anti virus software and… …   Wikipedia

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  • Polymorphic engine — A polymorphic engine (sometimes called mutation engine or mutating engine) is a computer program that can be used to transform another program into a version that consists of different code with the same functionality. A typical polymorphic… …   Wikipedia

  • Computer virus — Not to be confused with Malware. A computer virus is a computer program that can replicate itself[1] and spread from one computer to another. The term virus is also commonly but erroneously used to refer to other types of malware, including but… …   Wikipedia

  • multipart virus —    A form of virus that infects both the boot sector of a hard disk and executable files. Multipart viruses are difficult to locate because they use stealth and polymorphic techniques to avoid detection.    See also boot sector virus; file… …   Dictionary of networking

  • boot sector virus —    A virus that infects the master boot record of a computer by overwriting the original boot code with infected boot code. This kind of virus is usually spread to a hard disk from an infected floppy disk being used as a boot disk.    See also… …   Dictionary of networking

  • file-infecting virus —    Any virus that infects files on disk, usually executable files with filename extensions of .COM, .EXE, and .OVL. An unexpected change in the file size may indicate an infection. In certain cases, the original program is replaced with a new… …   Dictionary of networking

  • macro virus —    An executable program that attaches itself to a document created in Microsoft Word or Excel. When you open the document and execute the macro, the virus runs and does whatever damage it was programmed to do.    See also boot sector virus; file …   Dictionary of networking

  • stealth virus —    A form of virus that attempts to hide from antivirus software and from the operating system by remaining in memory.    See also boot sector virus; file infecting virus; macro virus; multipart virus; polymorphic virus; Trojan Horse; vaccine …   Dictionary of networking

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