Top 10 MOST DANGEROUS Computer Viruses Of All Time

Top 10 MOST DANGEROUS Computer Viruses Of All Time

Welcome to Top10Archive! Most of us have gotten a computer virus or
two before. Browsing around on some risque parts of the
internet, then all of a sudden you’ve picked up an unwanted hitchhiker along the way. For this installment, we’re taking a look
at 10 of the Worst Computer Viruses of all time. 10. Melissa Virus
This one is described as a macro virus, due to the fact that it’s not a standalone program
– needing another program to be triggered – in this case, through Microsoft Word. In March of 1999, David L. Smith would introduce
this virus to the internet. The macro virus itself, however, was written
by Kwyjibo, aka VicodinES or ALT-F11. This virus was responsible for millions of
dollars in damage due to the disruptive influence it had over so many networks. Infected computers would send out emails in
mass to anyone in the local PC’s email system. The original version came under an email titled
“Important Message From… (fill in the blank)”, and had managed to infect thousands of computers
– including those within government agencies. Although the virus would be minuscule today,
in 1999, it had a drastic impact on computers worldwide. 9. Sasser
A slightly newer virus than the one just mentioned, those running Windows 2000 and Windows XP
were vulnerable to the Sasser virus. First noticed on April 12th, 2004, this worm
is yet another that exploits buffer overflow of the LSASS. It begins affecting the infected computer
by scanning across different ranges of IP addresses, connecting to the victim’s computer
via TCP port 445. The overall effect of this virus was global,
including blocking all satellite communications to Agence France-Presse or the AFP, Delta
Air Lines canceling numerous flights, and both the Nordic insurance company If, and
parent company Sampo Bank hitting a complete halt and closing 130 offices in Finland alone. In the end, Microsoft issued a $250,000 bounty
reward on the creator, which quickly led to the arrest of 18-year-old German computer
science student, Sven Jaschan. 8. Zeus
The Zeus virus, or sometimes called the Zbot, is a malware program that allows someone to
construct their very own Trojan Horse. This toolkit was actually sold across the
black market – ranging from $3000 to $10,000 – as it is so easy to use, non-programmers
could use it to make their own horses successfully. The malware would remain dormant on the infected
user’s machine until they came across a web page with a form to fill out. It gained its major bit of notoriety in 2006,
as a common choice for hackers and criminals to steal online banking credentials. The worms built by the Zeus toolkit are so
adaptable, that they are often times overlooked by anti-virus programs – and according to
a report by Trusteer, nearly 77% of all PC’s that are infected with Zeus Trojans have current
up-to-date anti-virus programs. 7. Nimda
Just one week after the tragedy that was 9/11, we got a more globally spread attack in the
form of the Nimda virus. First appearing on September 18th, 2001, this
virus became so powerful that it actually slowed down global traffic as it powered its
way across the internet. Its name, which is the word Admin backward,
comes from the “admin.dll” file that takes control and replicates the virus. In short, the virus probes IP addresses, searches
for registered vulnerability, embeds itself into an exposed IIS server while looking for
a JavaScript, which it then causes it to replicate the virus and project it forward onto new
victims. 6. Storm Worm (Nuwar)
Starting in January of 2007, the Storm Worm began attacking thousands of computers in
the United States and Europe, and within just 1 week after launch, was responsible for 8%
of all malware infections globally. Containing its very own SMTP or simple main
transfer protocol engine – it allowed it to copy itself as an attachment and send itself
off to your contacts. The infection gained access through clickbait
emails, usually titled along the lines of “230 dead as storm batters Europe” and “Saddam
Hussein alive!” Once the attachment is opened, the malware
installs the wincom32 service, and injects a payload, passing on packets to destinations
encoded within the malware itself. 5. Conficker
Known by a variety of different names, such as Down, Downadup, Kido and of course Conficker,
this computer worm was first noticed in November of 2008 and targets and exploits flaws within
the Microsoft Windows operating systems. These flaws allow it to launch dictionary
attacks on the administrative passwords to propagate while forming a botnet. The Conficker virus has infected millions
of computers, from homes, businesses, and even government computers across 180 countries. This particular virus has been increasingly
difficult to handle, as it possesses a vast array of malware techniques. Since 2009, Microsoft has had a $250,000 bounty
reward leading to the capture of those responsible for the virus – which still has yet to be
claimed. 4. Slammer Worm
Alternately called the SQL Worm – this one being a bit misleading, as it did not utilize
the SQL language – and Sapphire Worm. The SQL Slammer Worm forced denial of service
on certain internet hosts and exploited a buffer overflow bug in Microsoft’s flagship
SQL Server and Desktop Engine database products – which in turn greatly reduced the speed
of general internet traffic. It was first noticed on January 25th, 2003
and spread at an unprecedented speed, infecting most of it’s estimated 75,000 victims within
ten minutes of the initial launch and caused roughly $1 billion in damages. 3. Code Red
The Code Red virus attacked users that ran Microsoft’s IIS web server. First noticed by eEye Digital Security employee,
Marc Maiffre, he named the worm Code Red, as that was what he was drinking when he discovered
it on July 13th, 2001. The worm was famous for displaying the message
“HELLO! Welcome to! Hacked By Chinese!” It spread itself with a bombardment of the
letter “N”, overflowing a buffer and allowing the worm to execute arbitrary code within
the machine. The virus was so popular, that it inspired
another virus, simply called “Code Red II,” on August 4th of the same year and eEye believes
the worm originated in Makati City, Philippines, the same place of origin as the “ILOVEYOU”
virus. In the end, the virus was said to have cost
$2.6 billion in damages. 2. ILOVEYOU
This virus carries such a harmless little message for something that was responsible
for so much damage. The “ILOVEYOU” virus, created by Reonel Ramones
and Onel de Guzman of the Philippines, was introduced to the world on May 4th, 2000,
and spread so quickly that it was estimated to have hit around 45 million users in less
than one day, and within 10 days, infected an estimated 10% of networked computers in
the entire world. The virus comes in an e-mail with “I LOVE
YOU” as the subject – inside of which is an attachment that will spam the virus out to
everyone’s Microsoft Outlook contacts, but also deleted many of the media files from
the recipients’ hard drive, mainly including all pictures and MP3 files. For the United States alone, the virus did
more than $15 billion in damages and in a twisted string of events, both developers
were released of all charges since the Philippines didn’t have any laws against writing malware
at the time. 1. MyDoom
MyDoom has a myriad of names, including [email protected], Novarg, Mimain.R and Shimgapi. This computer worm affects Microsoft Windows
and was first spotted on January 26th, 2004. Known as the fastest-spreading e-mail worm
to date, the worm is believed to have spread from Russia, though the actual location and
even creator are unknown. The virus would come in an email stating “Andy;
I’m just doing my job, nothing personal, sorry.” The virus is another that spams our emails,
and it’s believed that it was created to target the SCO Group – as twenty-five percent
of the infected hosts targeted In January of 2004, Microsoft offered a reward
of $250,000 leading to the arrest of the creator, which again, has still yet to be claimed. Mydoom and its variants are said to have caused
$38.5 billion in damages, making it the worst reported computer worm in history.

100 thoughts to “Top 10 MOST DANGEROUS Computer Viruses Of All Time”

  1. with the iloveyou and that one with a clickbait "video", theyre easy to detect. ilovryou IS A VBS NOT A TXT. and the clickbait one, EVEN MORE OBVIOUS! ITS AN EXE

  2. I hate how in the my doom portion he uses bumerang virus video from danooct1 and not revealing the true purpose

  3. Ransomware is the worse. I was looking up lobster porn one day (don't ask), and a ransomware window popped up. Was saying something like" Under article section blah blah blah, you're obligated to pay us a $5000 fine. Like nigga? For lobster porn, really? lol

  4. i have number 8 because i was trying to play anmail jam then i had to sign in to my google account so i can play then i got the virus

  5. 8:41 While it may have spread from Russia, it most certainly did not spread from the Russian Empire that ceased to exist in 1917, which is what you're showing a map of here.

  6. Filipino people are intelligent in modern technologies the main problem is that they don't have enough budget to create their own.

  7. i had the zeus virus on my computer wheen my parent s found out R.I.P me its scary you know voice over it keeps repeating itslef uhhhh

  8. he he he im gonna create a virus

    no just kidding i do not wanna pay $1000000 cause yeah and get arrested

  9. If I create a super virus, and a bounty was placed on me, would I be entitled to that money if I turn myself in?

  10. … Plz make a vid How to get rid of all the Viruses PLZ BECAUSE MY COMPUTER HAS SO MUCH LAG WHEN I JOIN A ROBLOX SERVER!!!

  11. I don't get why most of these were created. The ones that steal your bank details, I understand but the others are just to cause damage, what does the creator gain from that?

  12. Did anyone notice on the I love you email attachment it had .VBS? Bro! How dumb are you people!? .VBS is a scripted code that acts like a worm virus and even a Trojan. Geez.

  13. ._._._._._._._._._._._._._._._.

    You O O suck

    Original by VirusExplore, copy this message for telling people they 'cking suck.

  14. i' never got an actual virus but i' never use anti-viruses! they're even not enough! i' don't need protegent,the only anti-virus data-f##kery software

  15. I once got a virus on my computer, that made the computer explode, and my whole apartment burned down because of that virus.

  16. Computer Viruses are deadly and it could cause devastating effects if they are not been quarantined. This could be done by employing antivirus software for your devices.

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