Top 5 Computer Viruses Of All Time



WHAT WERE THE FIVE MOST CATASTROPHIC COMPUTER VIRUSES EVER AND HOW MUCH DAMAGE DID THEY CAUSE?
The fact that the internet has become the backbone of modern society means that it has also become a prime target for hackers and crackers around the world. Find out here about the most prominent and catastrophic computer viruses the world has ever seen and discover exactly what made them so damaging.
2,000,000
2,000,000
1,000,000
500,000
200,000
PCs INFECTED
DAMAGES IN $
9 HOURS
2 HOURS
10
MINUTES
SLAMMER SPREAD IN:
MYDOOM SPREAD IN:
I LOVE YOU SPREAD IN:
CODE RED SPREAD IN:
SOBIG.F SPREAD IN:
14 HOURS
96 HOURS
HOVER OVER TO REVEAL STATS
MYDOOM
(2004)
SOBIG.F
I LOVE YOU
CODE RED
SLAMMER
DAMAGES
2,000,000
PCs INFECTED
What was it:
A worm that spread through email as what appeared to be a bounced message.
How it worked:
When the unsuspecting victim opened the email, the malicious code downloaded itself and then pilfered the new victim’s Outlook address book.
How it spread:
From there, it spread to the victim’s friends, family and colleagues. It spread faster than any worm seen prior.
$38,000,000,000
DAMAGES
500,000
PCs INFECTED
What was it:
An innocent looking email attachment labeled “I Love You”.
How it worked:
When opened, it unleashed a malicious program that overwrote the users’ image files. It was designed to steal Internet access passwords.
How it spread:
The virus emailed itself to the first 50 contacts in the user’s Windows address book.
$15,000,000,000
DAMAGES
1,000,000
PCs INFECTED
What was it:
A worm that exploited an operating system vulnerability in machines running Windows 2000 and Windows NT.
How it worked:
This allowed it to deface and take down some websites, most memorably the whitehouse.gov website and forced other government agencies to temporarily take down their own public websites as well.
How it spread:
The worm spread by randomly selecting 100 IP addresses at a time, scanning the computers for the Microsoft system and then spreading only to those computers.
$2,600,000,000
DAMAGES
2,000,000
PCs INFECTED
What was it:
How it spread:
A worm that replicates itself, but also is a Trojan, as it disguises itself as something other than malware.
How it worked:
Once the user opened the email, it triggered the worm, which then went hunting for addresses.
$37,100,000,000
The flood of messages it then sent were capable of succumbing other users’ inboxes or computer systems by the sheer volume of emails. It briefly brought down freight and computer traffic in Washington, D.C. to a halt, grounded Air Canada and slowed down computer systems at many major companies.
DAMAGES
200,000
PCs INFECTED
What was it:
How it spread:
An Internet worm (also called Sapphire) that caused a denial of service on some Internet hosts and dramatically slowed down general Internet traffic.
How it worked:
It worked by releasing a deluge of network packets, units of data transmitted over the Internet, bringing the net on many servers to a near screeching halt.
$1,200,000,000
As it began spreading throughout the Internet, it doubled in size every 8.5 seconds. It selected IP addresses at random to infect, eventually finding all susceptible hosts. Among its list of victims was Bank of America’s ATMs, a 911 emergency response system in Washington State, Continental Airlines and a nuclear plant in Ohio.
(2003)
(2000)
(2001)
(2003)
INTRO
COST
SPREAD
SPEED