A computer worm is an independent malware computer program that recreates itself to spread to a different computer. The worm exploits a buffer overflow vulnerability in Microsoft SQL Server 2000 or MSDE 2000 by sending a formatted request to UDP port 1434. The attack trials recognized by Check Point ThreatCloud were coordinated to a substantial assortment of destination countries (172 nations altogether), with 26% of the attacks being towards arranges in the United States. This shows a wide rush of attacks instead of a focused on one.”]
Source: https://gbhackers.com/dos-computer-warm-sql-slammer/