Helkern Worm

The Helkern Worm - or simply Helkern - is specified as being designed to actively infect servers running on Microsoft SQL Server 2000. Helkern takes advantage of a security breach in Microsoft SQL Server that was first detected in July, 2002. In order to accomplish the buffer overrun exploit, the worm sends a specific request to a target computer. When the request is processed, the system automatically executes the Helkern Worm code contained in said request. In this way, an unauthorized remote user can run malicious code without your knowledge.