Top 10 Computer Viruses and Worms
1. I Love You (2000) -- Who wouldn't open an e-mail with "I Love You" in the subject line? Well, that was the problem. By May 2000, 50 million infections of this worm had been reported. The Pentagon, the CIA, and the British Parliament all had to shut down their e-mail systems in order to purge the threat.
2. Conficker (2009) -- The Conficker worm has created a
secure, worldwide infrastructure for cybercrime. The worm allows its
creators to remotely install software on infected machines. What will
that software do? We don't know. Most likely the worm will be used to
create a botnet that will be rented out to criminals who want to send
SPAM, steal IDs and direct users to online scams and phishing sites.
3. Melissa (1999) -- Melissa was an exotic dancer, and
David L. Smith was obsessed with her and also with writing viruses. The
virus he named after Melissa and released to the world on March 26,
1999, kicked off a period of high-profile threats that rocked the
Internet between 1999 and 2005.
4. Slammer (2003) -- This fast-moving worm managed to
temporarily bring much of the Internet to its knees in January 2003. The
threat was so aggressive that it was mistaken by some countries to be
an organized attack against them.
5. Nimda (2001) -- A mass-mailing worm that uses
multiple methods to spread itself, within 22 minutes, Nimda became the
Internet's most widespread worm. The name of the virus came from the
reversed spelling of "admin."
Top 10 Computer Worms in Internet History
2. Blaster (2003) -- Blaster is a worm that triggered a payload that launched a denial of service attack against windowsupdate.com, which included the message, "billy gates why do you make this possible? Stop making money and fix your software!!"
3. Sasser (2004) -- This nasty worm spread by exploiting a vulnerable network port, meaning that it could spread without user intervention. Sasser wreaked havoc on everything from The British Coast Guard to Delta Airlines, which had to cancel some flights after its computers became infected.
4. Storm (2007) -- Poor Microsoft, always the popular target. Like Blaster and others before, this worm's payload performed a denial-of-service attack on www.microsoft.com. During Symantec's tests an infected machine was observed sending a burst of almost 1,800 e-mails in a five-minute period.
List of computer viruses (numeric)
Name | Alias(es) | Type | Subtype | Isolation Date | Isolation | Origin | Author | Notes |
1260 | MS-DOS | 1990 | Mark Washburn, Ralf Burger | First virus to use polymorphic encryption | ||||
4K | 4096 | MS-DOS | January 1990 | unknown | The first virus to use stealth | |||
5lo | MS-DOS | October 1992 | unknown | Infects .EXE files only |
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