Computer virus emergence time

Time of emergence of computer viruses

Computer viruses are not a new product that only appeared recently. In fact, as early as 1949, Several years before the emergence of the first commercial computer, computer pioneer John Von Neumann had already put forward the concept of The blueprint for a virus program was sketched out, but it didn't really appear until the 1970s.

What is a computer virus?

Computer Virus is a set of computer instructions or programs that the programmer inserts into a computer program to destroy computer functions or data. It can affect the use of the computer and can replicate itself. code.

Computer virus characteristics

Computer viruses are contagious, covert, infectious, latent, excitable, expressive or destructive. The life cycle of a computer virus: development period → infection period → incubation period → attack period → discovery period → digestion period → extinction period.

Common virus examples:

1. Trojan virus, hacker virus. The prefix of Trojan virus is: Trojan, and the prefix of hacker virus is generally Hack. The public characteristic of Trojan viruses is to enter the user's system through network or system vulnerabilities, hide them, and then leak the user's information to the outside world, while hacker viruses have a visual interface that can remotely control the user's computer. Trojan horses and hacker viruses often appear in pairs, that is, the Trojan horse virus is responsible for invading the user's computer, and the hacker virus will be controlled by the Trojan horse virus. Both types are now increasingly integrated.

2. "Love bug" virus. The virus is spread through the Microsoft Outlook email system, with the subject "I LOVE YOU" and an attachment. Once the email is opened in Microsoft Outlook, the system will automatically copy and send the virus to all email addresses in the address book. The "Lovebug" virus is a worm that can rewrite certain files on local and network hard drives. After infection, the email system will slow down and may cause the entire network system to crash.

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