What are the major categories of computer virus?

The Three Major Types of Computer Viruses

Macro viruses – These are the largest of the three virus types.
Boot record infectors – These viruses are known also as boot viruses or system viruses.
File infectors – These viruses target .

What are the 4 types of computer viruses?

Common Types of Computer Viruses

Multipartite Virus. This virus infects the entire system – multipartite viruses spread by performing unauthorized actions on your operating system, folders, and programs.
Direct Action.
Browser Hijacker.
Overwrite Virus.
Web Scripting Virus.
File Infector.
Network Virus.
Boot Sector Virus.

What are the five types of computer virus?

5 types of computer virus

With security threats in the form of computer malware and viruses increasing over the past few years, it is important to understand the types of computer viruses and how to avoid becoming a victim of a cyber attack.
1- Ransomware.
2- Virus.
3- Adware.
4- Spyware.
5- Trojan Horse.

What is computer virus and its classification?

A computer virus is one type of malware that inserts its virus code to multiply itself by altering the programs and applications. The computer gets infected through the replication of malicious code. Computer viruses come in different forms to infect the system in different ways.

What is the most common computer virus?

The 8 Most Famous Computer Viruses of All Time

CryptoLocker. When it comes to malware, ransomware is the new kid on the block.
ILOVEYOU.
MyDoom.
Storm Worm.
Anna Kournikova.
Slammer.
Stuxnet.

What are the three types of computer viruses?

The three types of computer viruses

Macro viruses – The largest of the three virus types, macro viruses use built-in programming scripts that are found in Excel or Word to automate tasks.
Boot record infectors – Boot viruses, or system viruses, attack programs found on floppy and hard disks.

What are the main causes of computer virus infection?

Clicking on links to malicious websites in emails, messaging apps or social network posts. Visiting compromised websites, aka drive-by downloads, viruses can be hidden in HTML, thus downloading when the webpage loads in your browser. Connecting your device to infected external hard drives or network drives.