How many known computer viruses are there?

By number, there are well over 100,000 known computer viruses. Only a small percentage of this total number account for those viruses found in the wild, however.

What are the top 10 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 4 computer viruses?

• Boot sector virus. This type of virus can take control when you start — or boot — your computer.
• Web scripting virus. This type of virus exploits the code of web browsers and web pages.
• Browser hijacker.
• Resident virus.
• Direct action virus.
• Polymorphic virus.
• File infector virus.
• Multipartite virus.

How many computer viruses are created each day?

Every day, there are at least 560,000 instances of new malware being created and detected. This number takes into account both malware programs and unwanted apps that can, down the line, cause malware infections if they stay installed long enough.

What is the deadliest computer virus in the world?

1. ILOVEYOU. ILOVEYOU is considered one of the most virulent computer virus ever created. It managed to wreck havoc on computer systems all over the world with around $10 billion worth of damages.

Who is the creator of ILOVEYOU virus?

Creation. ILOVEYOU was created by Onel De Guzman, a college student in Manila, Philippines, who was 24 years old at the time.

What does the I Love You virus do?

The worm inflicts damage on the local machine, overwriting random types of files (including Office files, image files, and audio files; however after overwriting MP3 files the virus hides the file), and sends a copy of itself to all addresses in the Windows Address Book used by Microsoft Outlook.

What is Earth’s deadliest computer virus?

How do hackers use viruses?

Many hackers want to slip a virus on your computer. Once installed, a virus can record everything you type and send it back to the hacker. It can send out spam e-mail or attack other computers. To do this, the hackers disguise the virus as something harmless.

What is the strongest virus in computer?

Top 10 Most Destructive Computer Viruses of All Time

1. ILOVEYOU. The ILOVEYOU virus posed as a love confession.
2. Code Red. Code Red targeted Microsoft IIS users and even the White House website was hit.
3. Melissa. This virus started in 1999 as an infected word document.
4. Storm Trojan.
5. Sasser.
6. My Doom.
7. Zeus.
8. Conficker.

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.

What are the common types of computer viruses?

There are different kinds of computer viruses: Probably the most common form is the macro-virus or script virus. Such viruses are programmed with the script function which is present in many text processing systems and spreadsheets; or with general “script” functionality of a program.

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.

How can a computer virus harm your computer?

Below mentioned are few of the most prominent effects of virus infections: Virus may weaken certain applications and programs, ruining their capacity to work smoothly. Virus may likewise focus on the data stored on the hard drive followed by complete crashes. On the documents side virus may delete, alter and corrupt them making them inaccessible.