Written in C, compressed with ASPack

more versions

Backdoor.Win32.Loony.o:

dropped file:
c:\WINDOWS\system32\winsys32.exe
size: 44,544 bytes  

startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "winsys32 Driver"
data: winsys32.exe 



tested on Windows XP
March 20, 2005