This indicates an attack attempt to exploit a memory corruption vulnerability in Microsoft Windows.
The vulnerability is caused by an error that occurs when Microsoft Server Message Block (SMB) Protocol software handles a malformed TRANS request. A remote attacker could exploit this vulnerability to execute arbitrary code.
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
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patch, available from the website: