Written in Assembly

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Server:
dropped file:
c:\WINDOWS\system32\WinUpdate.exe
size: 13,312 bytes 

port: 7332 TCP

startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\Automatic Updates "StubPath"
data: C:\WINDOWS\System32\WinUpdate.exe ASC 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "Automatic Updates"
data: C:\WINDOWS\System32\WinUpdate.exe 	


	
tested on Windows XP
March 08, 2006