Internet was under attack! Between Saturday and Sunday a little piece of code "SQL Slammer" brings up one of the must powerfull internet's slowing down .
This virus targets SQL Server and MSDE Databases by using UDP Port 1434 and an old vulnerability patched by Microsoft on Bullettin MS02-039 on July 24, 2002.

CERT (Http://www.cert.com) on the CERT® Advisory CA-2003-04 MS-SQL Server Worm wrote:
"The worm targeting SQL Server computers is self-propagating malicious code that most likely exploits two vulnerabilities in the Resolution Service of Microsoft SQL Server 2000 vulnerabilities"

Microsoft on it's security bullettin PSS Security Response Team Alert - New Worm: W32.Slammer wrote:
"W32.Slammer is a memory