This is an exploit for the SQL Server 2000 resolution service buffer overflow. This overflow is triggered by sending a udp packet to port 1434 which starts with 0x04 and is followed by long string terminating with a colon and a number. This Metasploit module should work against any vulnerable SQL Server 2000 or MSDE install (pre-SP3).
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ISS Security Advisory - The "Microsoft SQL Slammer Worm" is spreading via unpatched SQL servers. Once a vulnerable computer is compromised, the worm will infect that target, randomly select a new target, and resend the exploit and propagation code to that host sending a large amount of network traffic in the process which crashes some network equipment.
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