This indicates an attack attempt against a code execution vulnerability in Microsoft Server Message Block (SMB) Protocol software.
The vulnerability is caused by an error when the vulnerable software handles a crafted SMB TRANS2 request. It allows a remote attacker to execute arbitrary code via sending a crafted TRANS2 request.
Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2 and Windows XP Service Pack 3
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista and Windows Vista Service Pack 1
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1
Windows Server 2008 for 32-bit Systems*
Windows Server 2008 for x64-based Systems*
Windows Server 2008 for Itanium-based Systems
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patch, available from the website: