What is a typical computer virus?

CIH virus, which specifically destroys the upgradeable BIOS curing program on some motherboards.

Computer worm (computer worm)

Computer worms do not infect and parasitize other files, but replicate themselves and actively spread to other computers on the network system. Just like the bugs crawling around in the network system, they are called "worms". Such as shock wave virus, infection with this virus will lead to system instability, leading to system collapse and entering the countdown to restart.

Trojan horse (Trojan horse)

Trojan horse (or Trojan for short) is a computer program disguised as some useful or interesting programs, such as screensavers, fortune-telling programs, computer games and so on. But in fact, they have ulterior motives and secretly do bad things; It can destroy data, cheat users' passwords and so on. Generally, Trojans do not copy themselves, nor actively spread to other computers.

New happy hour virus

Desktop.ini and folder.htt files will be generated under all folders. Add a piece of code under the original ordinary folder.htt file to realize the automatic copying of folder.htt and desktop.ini files every time a new folder is created or opened. Seriously, it even changed the way my computer and all my folders were opened. For example, double-clicking my computer on the desktop will open a file full of garbled words.

Second generation virus

Different from the traditional computer virus, this virus does not need to be parasitic in the main program. They are realized by using the latest programming languages and technologies, such as Java/ActiveX/VBScript. , lurking in the HTML page of a webpage, and triggered when users browse online. They can be combined with traditional computer viruses and are cross-platform, such as Windows, Unix/Linux, set-top boxes, IA and so on.