Written in C, compressed with ASPack

more versions

Backdoor.Win32.Loony.p:

dropped file:
c:\WINDOWS\system32\winsys32.exe
size: 44,032 bytes 

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


attempts to connect to an IRC Server



tested on Windows XP
April 21, 2005