Tips: Ways That Computer Viruses Spread
Must be for a virus or similar program to a large influence able to spread from one computer to another. They are specifically designed to gain access to parts of the system that allows your computer to communicate with other machines. Below is a discussion of some of the most widely used method.
Boot infectors
Every hard disk (hard disk, floppy disk, CD, DVD) contains a boot sector whether it is a bootable floppy disk or not. If the computer is on, it looks for boot information. If the computer finds a disk with boot information, please read the information and start using the computer properly. If for any reason that the virus infects the boot information, the virus is activated and can be transferred to the hard disk of the computer (if the infection is on the CD for example).
Once the boot code has infected the hard disk with the virus will be loaded into the memory of your computer every time you restart your computer. can from memory the boot virus on your computer in any medium and would be used. This is how the infection spreads.
Most viruses can boot the system for a long time without problems, only there to spread. Often the virus is possible for her bad behavior at a given time (Halloween for example). There are some bad boot virus that destroy the boot information or force a complete format of your hard disk if it entered into the computer.
Infectors program
When an infected application is executed to activate the virus and is loaded into memory. While the virus in memory of any file that you run the new program could be infected. This means that it is infecting more and more applications on your system. Some infections are very common and will certainly lead to system problems.
Program files may function without problems for some time, but eventually they will be more problems or infection reduces the overall computer system. Generate program data can be the first sign of infection, such as saving files without proper names, or stored with incorrect or incomplete data.
This type of virus is often designed so that the program for the exchange of information between users / computers such as e-mail applications, screen savers, macro-Office documents are used, and self-extracting compressed file.
By e-mail attachments
Files that can be sent in an e-mail – Many of the most dangerous viruses were primarily spread through e-mail attachments. In such cases, unwitting users of computers infected file attached to an e-mail infected, and send an email to friends or colleagues. If mail is received, the virus is launched when the attachment is opened, thus infecting a new computer. E-mail messages with animation, greeting cards automatically, jokes, photos, tables and files documents all files have been documented with the virus.
More and more often these days a mass-mailing worm emails / viruses are released. AUTO attacks scans your computer files for e-mails that find and then use your e-mail application automatically infected messages to e-mails within files on your computer (not just e-mail file) to find to send.
It is important to know, from e-mails you open, make sure that they do not contain harmful viruses. could also have e-mails from friends and family a virus if the infected person’s computer. This anti-virus software is in determining whether viruses in this incoming message helpful.