What type of virus is welchia?
What type of virus is welchia?
Welchia, also known as the “Nachi worm”, is a computer worm that exploits a vulnerability in the Microsoft remote procedure call (RPC) service similar to the Blaster worm.
What does the welchia virus do?
The Welchia worm (also known as Nachi) is a Nematode that deletes Blaster and patches the vulnerabilities that made Blaster possible. While it does not have any intentionally harmful effects, it tends to slow down computers and networks.
When was the Welchia virus created?
Welchi was first reported on August 18th 2003.
How did the Melissa virus work?
The Melissa virus, reportedly named by Smith for a stripper in Florida, started by taking over victims’ Microsoft Word program. It then used a macro to hijack their Microsoft Outlook email system and send messages to the first 50 addresses in their mailing lists.
Who created SQL Slammer?
David Litchfield
Origins of SQL Slammer The potential for what would become the SQL Slammer worm was originally discovered by the security expert David Litchfield. In 2002, the ‘”bug hunter” ethically developed two methods to bypass the prevention mechanisms built into a version of Microsoft SQL Server.
Does Melissa virus still exist?
The impacts of the Melissa virus According to the FBI website, the virus overloaded email servers at more than 300 corporations and government agencies, shutting down some entirely. The virus itself reached thousands of computers by sending itself through the mailing lists of infected devices.
Who Spread Melissa virus?
On March 26, it began spreading like wildfire across the Internet. The Melissa virus, reportedly named by Smith for a stripper in Florida, started by taking over victims’ Microsoft Word program.
What is SQL worm?
SQL Slammer is a 2003 computer worm that caused a denial of service on some Internet hosts and dramatically slowed general Internet traffic. It spread rapidly, infecting most of its 75,000 victims within ten minutes.
How was the Slammer virus stopped?
The speed at which Slammer attacked was ultimately its downfall. By not throttling its infection routines, it crashed so many servers and networks that it ultimately slowed itself down. If it had been more judicious in its searching algorithms, then it’s likely that it could have infected many more computers.
How did they stop the Melissa virus?
After the virus’s spread, the FBI sent out warnings about Melissa and information about its effects, helping to reduce the impact of the virus. A collaborative effort among the FBI, New Jersey law enforcement and a representative of AOL was able to track down Smith. Smith was arrested on April 1, 1999.
