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 categories of virus?

Various types of viruses:

• Macro Virus: Unlike most viruses which are written in a low-level language(like C or assembly language), these are written in a high-level language like Visual Basic.
• Source code Virus:
• Polymorphic Virus:
• Encrypted Virus:
• Stealth Virus:
• Tunneling Virus:
• Multipartite Virus:
• Armored Virus:

What are the 3 types of computer viruses?

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 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 are the 10 types of computer viruses?

Types of Computer Viruses

• Macro Virus. This type of computer virus is normally found in Microsoft Office programs.
• Boot Sector Virus.
• Trojan Horses.
• Overwrite Virus.
• Browser Hijacker.
• Web Scripting Virus.
• Polymorphic Virus.
• Resident Virus.

What are 10 examples of viruses?

Here are the top ten notorious computer viruses of all time.

• Morris Worm. Let us start our journey with Morris Worm or the “Great Worm”, which is believed to be the pioneer among computer worms distributed through the internet.
• Nimda.
• ILOVEYOU.
• SQL Slammer.
• Stuxnet.
• CryptoLocker.
• Conficker.
• Tinba.

Is iloveyou a virus or worm?

ILOVEYOU, sometimes referred to as Love Bug or Love Letter for you, is a computer worm that infected over ten million Windows personal computers on and after 5 May 2000 when it started spreading as an email message with the subject line “ILOVEYOU” and the attachment “LOVE-LETTER-FOR-YOU.

What are the six types of computer viruses?

Understanding the Six Most Common Types of Malware

1. Virus. Viruses are designed to damage the target computer or device by corrupting data, reformatting your hard disk, or completely shutting down your system.
2. Worm.
3. Trojan Horse.
4. Spyware.
5. Adware.
6. Ransomware.

Who creates viruses in computers?

Early on, viruses had varied utilities and were engineered mostly by people in computer science industries. College students created viruses for research projects in order to help further their studies and fine-tune their coding skills.

What was the first computer virus?

Following Creeper, which was isolated within the realm of researchers, Elk Cloner was the first virus to be detected in the wild. Written in 1982 by a 15-year-old, it was a boot sector virus that infected Apple II computers.

What are 10 viruses?

What are the 5 worst computer viruses?

The Top 10 Worst Computer Viruses in History

• Klez – $19.8 billion.
• ILOVEYOU – $15 billion.
• WannaCry – $4 billion.
• Zeus – $3 billion.
• Code Red – $2.4 billion.
• Slammer – $1.2 billion.
• CryptoLocker – $665 million.
• Sasser – $500 million.

What are the different types of computer viruses?

Computer viruses are categorized into four main types: boot sector, file or program, macro, and multipartite viruses. Program or file viruses are software programs that attach themselves to executable programs.

What are the names of some computer viruses?

There are several types of computer viruses, commonly every malicious code such as Adware, Trojans, Spyware, Keylogger, Worm, Rootkit, Backdoor are called a virus. However, each type of dangerous code is different in behavior and damage level. For example, Trojans doesn’t replicate itself like a virus but it behaves like a legitimate program.

What are the most famous computer viruses?

There are millions of computer viruses around that make our lives difficult. Ever wondered which are the most famous computer virus and worms in history? The list includes Nimda, Code Red, Mydoom, Melissa, Sasser, Blaster and others.

What is the most dangerous computer virus?

The latest and most dangerous virus is the “downadup” worm, which was also called “Conficker”. The computer security company F-Secure stated that the computer virus has infected 3.5 million computers worldwide.