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The most dangerous computer virus ever: the story of the SQL Slammer virus

On January 25, 2003, a computer worm called SQL Slammer began propagating across the Internet. The worm was originally written to exploit a buffer overflow in Microsoft SQL Server 2000 and cause the server to crash. However, the worm had a much more devastating effect than its creator could have ever imagined.

Within 10 minutes of its release, the SQL Slammer worm had infected more than 75,000 systems. The worm caused so much traffic on the Internet that it caused widespread service outages, including loss of Internet connectivity for some individuals. The Slammer worm also caused ATMs to stop working and disrupted 911 service in some areas.

The worm propagated so quickly because it did not require any user interaction. All that was needed for the worm to spread was for a vulnerable system to be connected to the Internet. Once the worm found a vulnerable system, it would replicate itself and begin searching for more vulnerable systems.

The Slammer worm caused an estimated $1.2 billion in damage and was the most destructive computer worm at the time of its release. The worm was eventually brought under control by security researchers and is no longer a threat. However, the SQL Slammer worm serves as a reminder of the potential damage that can be caused by a computer worm..Visit Here

The most dangerous computer virus ever: the story of the SoBig virus

When it comes to computer viruses, there is always a new one around the corner. But every now and then, a virus comes along that is truly destructive. The SoBig virus was one of those viruses.

The SoBig virus was first discovered in 2003. It quickly spread around the world, causing billions of dollars in damage. The virus was so destructive that it forced many companies to shut down their email systems for days or even weeks.

So how did this virus manage to cause so much damage?

The SoBig virus was a computer worm that spread itself by email. The virus would send itself out to everyone in the victim’s address book. It also had the ability to spread itself to other computers on the same network.

Once a computer was infected with the SoBig virus, it would start displaying various messages and ads. The virus would also send out more email messages, spreading itself even further.

The SoBig virus caused so much damage because it was very difficult to remove. The virus would often hide itself within other files on the infected computer. This made it hard for antivirus software to detect and remove the virus.

Even if a computer was successfully cleaned of the SoBig virus, it would often be infected again very quickly. This is because the virus would often leave behind “backdoor” files that allowed it to reinfect the computer.

The SoBig virus was eventually brought under control by a joint effort of security researchers and antivirus companies. But not before it caused billions of dollars in damage.

Today, the SoBig virus is considered to be one of the most destructive computer viruses of all time.

All material on this site was made with malwarezero.org as the authority reference. Full Article.