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Conficker, also known as Downup, Downadup and Kido, is a computer worm targeting the Microsoft Windows operating system that was first detected in November 2008. [2] It uses flaws in Windows OS software (MS08-067 / CVE-2008-4250) [3] [4] and dictionary attacks on administrator passwords to propagate while forming a botnet, and has been unusually difficult to counter because of its combined use ...
March 26: The Melissa worm was released, targeting Microsoft Word and Outlook -based systems, and creating considerable network traffic. June 6: The ExploreZip worm, which destroys Microsoft Office documents, was first detected. September: the CTX virus is isolated.
A computer virus[ 1] is a type of malware that, when executed, replicates itself by modifying other computer programs and inserting its own code into those programs. [ 2][ 3] If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses.
Pithovirus—the largest known virus; Parvovirus—smallest known viruses; Pelagibacter ubique—possesses one of the smallest bacterial genomes; Virophage—a virus that requires the host cell to be co-infected with a giant virus; The Giant Virus Finder is a software tool that identifies giant viruses in environmental Metagenomes.
History of virology. Electron micrograph of the rod-shaped particles of tobacco mosaic virus that are too small to be seen using a light microscope. The history of virology – the scientific study of viruses and the infections they cause – began in the closing years of the 19th century. Although Edward Jenner and Louis Pasteur developed the ...
Influenza A virus structure. The influenzavirus virion is pleomorphic; the viral envelope can occur in spherical and filamentous forms. In general, the virus's morphology is ellipsoidal with particles 100–120 nm in diameter, or filamentous with particles 80–100 nm in diameter and up to 20 μm long. [5]
Filamentous phage virion--schematic views. Filamentous bacteriophages are among the simplest living organisms known, with far fewer genes than the classical tailed bacteriophages studied by the phage group in the mid-20th century. The family contains 29 defined species, divided among 23 genera. [ 6][ 7] However, mining of genomic and ...
Virus classification. Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms . Viruses are classified by phenotypic characteristics, such as genderlogy, nucleic acid type, mode of replication, host organisms, and the type of disease they cause.