Computer worm
In computer a worm is a harmful program that differs from virus by several points.
First the worm is a program Self that can be found on the HDDUnlike viruses that hide as Parasites in files or executable code contained in boot sector disk. However very few worms do not register on the disc and still only Memory).
A worm can arrive directly through the network by taking advantage of an open port, but the most traditional method is to enter as an attachment attached to an email. Some then run directly on a plain reading of the mail (especially if the system of thecomputer has not been updated). But most of weather must click on the attachment so that the worm runs.
A worm does not replicate locally, unlike viruses, but its most usual method of propagation is to send itself in emails generated automatically. These emails are sent without the knowledge of the user to various addresses. These addresses are usually harvested by the worm in files on the disk (especially address book), Or it addresses is built on a semi random.
The worms typically install on the computer other harmful programs: spyware, keyloggers,backdoors (backdoor) Trojans. These programs can be used to spy on your activity, capture passwords or credit card numbers, or take control of the remote computer to turn it into Zombie. Such PC can be used as a relay for attacks Denial of Service or to send mass spam. Incorrectly the public and even some specialty items, use the term virus to describe these malware.
Verification
Authenticate, confirm or establish the truth.
Beta
The beta version of a Software is a pre-release. It is not marketed because it is not stable yet and may involve some Bug as "beta testers" are responsible for detecting. It is sometimes advisable to install such a version to avoid problems on his computer.
VGA
Standard display with a resolution of 640 x 480 pixels in 16 colors.
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