A virus that runs in the backround and installs itself without a warning.
The infect your computer by being undetected by your anti virus and posing as a harmless file.
Stealth viruses are designed to hide on disks to avoid being detected by virus scanners. You must block stealth viruses from hiding, so your scanner can find and remove them.Steps to remove stealth virusesUpdate your anti-virus software.Save a copy of your virus scanner onto a clean floppy disk. (You might need this backup file if the scanner on your hard drive is infected.)Insert the floppy disk into the drive in a locked position; this should block a virus from hiding within the floppy drive.Run your anti-virus software. If the clean, locked floppy is in the drive, you should be able to detect and remove a stealth virus.Check if your scanner program is infected. And if it is, use the backup program on the floppy to scan for viruses.Shut down your computer to clear the memory, and then reboot. Now that the virus is out of the memory, your computer should be safe.
In 1986, the first PC virus was created. It was the Brain virus from Pakistan. Brain was a boot sector virus and only infected 360k floppy disks. Interestingly, even though it was the first virus, it had full-stealth capability.
You need to get a software called Malwarebytes to remove malware, including viruses, Trojans, spyware, adware and rootkits from your computer.
Stealth virus
definition of a computer virus definition of a computer virus
When creating a virus, you should think of the following: * What will it exploit? How will the virus enter a computer and not be detected? * How will the virus infect other programs? Is it a non-memory residential virus or a memory-residential virus? * How fast will it infect the host computer? In other words, will the virus spread extremely fast to destroy the computer as soon as possible or will it spread more slowly to make sure it is not detected by antiviruses? * How will the virus conceal itself? Will the virus infect antivirus programs to avoid detection, use polymorphism, or some other stealth function? Asking these questions allows you to have what virus in mind you want to make and lead the way to making the perfect specimen.
Every computer could have a virus but if you use your computer carefully it can be impossible for the virus to come to your computer.
Scanning virus only help to find the virus inside your computer disks, but do no other actions, virus is still in your computer. But Removing virus not only find it, but also remove the virus from your computer. Thus no such virus will remain in your computer after that.
Virus-L and computer virus are discussions forums which focus on computer virus issues
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As with a biological virus, a computer virus could be serious or not so serious. It depends on what the virus is designed to do, what kind of anti-virus protection and virus vulnerabilities you have, and whether you have important information on your computer.