Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup0' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP000.TMP\"'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\GrayPigeon_Hacker.com.cn] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
- '%WINDIR%\Hacker.com.cn.exe'
- '%TEMP%\IXP000.TMP\SERVER~3.EXE'
Modifies file system :
Creates the following files:
- %WINDIR%\Hacker.com.cn.exe
- %TEMP%\IXP000.TMP\SERVER~3.EXE
Sets the 'hidden' attribute to the following files:
- %WINDIR%\Hacker.com.cn.exe
Network activity:
Connects to:
- 'hs####on.gicp.net':8000
UDP:
- DNS ASK hs####on.gicp.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
