What are Viruses?

A computer virus is a computer program that can copy itself and infect a computer without the permission or knowledge of the owner. The term “virus” is also commonly but erroneously used to refer to other types of adware, malware and spyware programs that do not have the reproductive ability. A true virus can only spread from one computer to another (in some form of executable code) when its host is taken to the target computer; for instance, the user sent it over a network or via e-mail, or carried it on a removable medium such as a floppy disk, CD, DVD, or USB drive.

The term “computer virus” is sometimes used as a catch-all phrase to include all types of malware. Malware includes computer viruses, worms, trojan horses, most rootkits, spyware, dishonest adware, crimeware, and other malicious and unwanted software, including true viruses. Viruses are sometimes confused with computer worms and Trojan horses, which are technically different. Viruses can increase their chances of spreading to other computers by infecting files on a network file system or a file system that is accessed by another computer.

List of Viruses Parasites:

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» Virus.Parite
This is a virus designed to propagate via open network shares. After an infected file is launched on the victim machine the virus scans the hard drive and infects all .exe files it comes across. Moreover, the virus may infect your computer with additional ...
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» Virus.Virut.ak
Virus.Virut.ak is designed to infect .exe and .scr files, once it loaded into memory it will infect all subsequently launched .exe and .scr files. Additionally, the virus opens up backdoor, thereby allowing remote malicious individuals to gain full access to your machine and use ...
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» Virus.Virut.r
Virus.Virut.r is a particularly dangerous virus that propagates via P2P file sharing programs, network shares and IRC. Once it is installed, Virus.Virut.r will embed itself deeply in the system and attempt to infect any .exe or .scr files that are running on your machine. ...
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» Virus.Hidrag.a
Virus.Hidrag.a is a virus program that delivers itself via browser security holes, IRC, and over network shares. After execution, Virus.Hidrag.a will remain computer memory resident and will try to infect all the .exe or .scr files that it can locate on your machine. Virus.Hidrag.a ...
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» <!--:en-->Virus.Win32.Virut.ce<!--:-->
Virus.Win32.Virut.ce is one of the many forms of the Virut virus. These viruses are capable of infecting executable files, making them difficult to remove as these files may be needed to run Windows. Virut viruses, especially Virus.Win32.Virut.ce, tend to communicate with an outside server, calling attention ...
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» Virus.Fontra
Virus.Fontra is a virus that usually infects executable or .exe files in folders related to file sharing programs. Virus.Fontra also has the ability to download and execute remote files which could perform other malicious activities without your knowledge. Common peer-to-peer applications such as eMule, Kazaa and ...
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» Google Redirect Virus
The Google Redirect Virus is a virus that typically loads onto your computer via deceptive means and most likely without any informed consent. Once active, you will find that using the Google search engine may cause results to me diverted to advertisements and potentially hazardous unsecure ...
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» Packed.Generic.200
Packed.Generic.200 is a virus that typically detects malicious files that were either packed or encrypted to conceal them from antivirus or security programs. Once executed, Packed.Generic.200 may further harm the computer by downloading additional malicious software from a remote server....
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» <!--:en-->JS/Downloader.Agent<!--:-->
JS/Downloader.Agent is a detection for JavaScript files that may lead to the download and installation of additional malicious software onto the compromised computer. Affecting Windows, JS/Downloader.Agent typically invades a system due to affiliated trojans, modifying the browser settings to cause web-surfing activities to be diverted to ...
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» <!--:en-->W32.Virut.CF<!--:-->
W32.Virut.CF (also known as W32/Virut.n) is a virus that uses Entry Point Obfuscation (EPO) in order to bypass antivirus program detection and evade the scanning process. W32.Virut.CF may then begin infecting executable files including .exe, .scr and other Portable Executable (PE) file formats. W32.Virut.CF may then ...
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