What are 7 types of computer virus?

What are 7 types of computer virus?

7 Common Types of Malware

• Trojans. A Trojan (or Trojan Horse) disguises itself as legitimate software with the purpose of tricking you into executing malicious software on your computer.
• Spyware.
• Adware.
• Rootkits.
• Ransomware.
• Worms.
• Keyloggers.

What are the top 5 computer virus?

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.

Is butterfly on Desktop a virus?

Butterfly on Desktop is a trojan created to trick the user’s friends that there are butterflies on the desktop.

Is Worm A computer virus?

Worms are a self-replicating type of malware (and a type of virus) that enter networks by exploiting vulnerabilities, moving quickly from one computer to another. Because of this, worms can propagate themselves and spread very quickly – not only locally, but have the potential to disrupt systems worldwide.

What are the different types of computer viruses?

Common Types of Computer Viruses. 1 1. Resident Virus. Resident viruses set up shop in your RAM and meddle with your system operations. They’re so sneaky that they can even attach 2 2. Multipartite Virus. 3 3. Direct Action. 4 4. Browser Hijacker. 5 5. Overwrite Virus.

What kind of virus spreads from one computer to another?

File Infector Virus – As the name suggests, it first infects a single file and then later spreads itself to other executable files and programs. The main source of this virus are games and word processors. Spacefiller Virus – It is a rare type of virus which fills in the empty spaces of a file with viruses. It is known as cavity virus.

What kind of virus infects a floppy disk?

Boot Sector Virus – It is a type of virus that infects the boot sector of floppy disks or the Master Boot Record (MBR) of hard disks. The Boot sector comprises all the files which are required to start the Operating system of the computer.

What kind of virus attacks both boot and executable files?

Multipartite Virus – A virus which can attack both, the boot sector and the executable files of an already infected computer is called a multipartite virus. If a multipartite virus attacks your system, you are at risk of cyber threat.