Netsys 8.0
(Backdoor.Win32.GrayBird.bn)
(Backdoor.Win32.Hupigon.adn)

by Zhou Jian

Written in Delphi

Released in October 2006

Made in China

more versions


Server:
dropped file:
c:\WINDOWS\system32\ZRundlll.exe
size: 275,502 bytes  

port: 4778 TCP

added to registry:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ZRundlll\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ZRundlll\Security



tested on Windows XP
October 20, 2006

MegaSecurity