Quick Answer: What’S The Worst Computer Virus?

What are the 5 worst computer viruses?

The 5 Worst Computer VirusesMelissa.

A macro virus named after a Miami stripper, was so effective in 1999 that the tidal wave of email traffic it generated caused the likes of Intel and Microsoft to shut down their email servers.

The Anna Kournikova Virus.

MyDoom.

Sasser & Netsky.

2007 Storm Worm..

Is Bonzi Buddy still a virus?

BonziBuddy was discontinued in 2004 after the company behind it faced lawsuits regarding the software and was ordered to pay fines.

Is iloveyou a virus or worm?

VBS/LoveLetter is a VBScript worm. It spreads through email as a chain letter, using the Outlook email application. ILOVEYOU is also an overwriting VBS virus, and it spreads itself using the mIRC (Internet Relay Chat) client as well.

What are the top 5 computer viruses?

With all that in mind, we’ve put together our list of the top computer viruses.Conficker. First discovered in 2008, Conficker, which had many aliases, including Downup, Downadup, and Kido is a worm that targets Windows operating systems. … ILOVEYOU. … Morris Worm. … Mydoom. … Stuxnet. … CryptoLocker. … Sasser & Netsky. … Anna Kournikova.More items…•

Who invented virus in computer?

Prior to 1988, most viruses were mere annoyances and virtually harmless. In January of 1986, the first virus written for Windows based PCs was born. Known simply as “Brain,” it was written by two brothers, Basit and Amjad Farooq Alvi, who were only 17 and 24 years old at the time.

What is the biggest computer virus?

Mydoom virusSummary. Computer viruses cost an estimated $55 billion each year in cleanup and repair costs. The biggest computer virus ever is the Mydoom virus, which did an estimated $38 billion in damages in 2004. Other notables are the Sobig worm at $30 billion and the Klez worm at $19.8 billion.

How can you tell if your computer has a virus?

If you notice any of the following issues with your computer, it may be infected with a virus:Slow computer performance (taking a long time to start up or open programs)Problems shutting down or restarting.Missing files.Frequent system crashes and/or error messages.Unexpected pop-up windows.More items…•

What is the most dangerous computer virus?

Top 10 Most Dangerous Cyber Viruses of All TimeCryptoLocker. CryptoLocker Ransomware was released in September 2013 and it spread through email attachments and encrypted the user’s files so that they couldn’t access them. … PlugX. … Zeus Gameover. … Stuxnet. … Mydoom. … Sasser and Netsky. … CodeRed. … Nimba.More items…•

Can a virus kill a computer?

Malware infections can kill And computer viruses also have the potential to kill. In most cases, computer malware cause data loss, steal personal information and occasionally, cause physical damage to the infected computer.

How bad can a computer virus be?

What does a computer virus do? Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. Others simply replicate themselves or flood a network with traffic, making it impossible to perform any internet activity.

What did 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.

Who made iloveyou virus?

Filipino Onel de GuzmanFilipino Onel de Guzman, now 44, says he unleashed the Love Bug computer worm to steal passwords so he could access the internet without paying. He claims he never intended it to spread globally.