Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Thunder Browser] 'Start' = '00000002'
Infects the following executable system files:
- <DRIVERS>\beep.sys
Substitutes the following executable system files:
- <SYSTEM32>\dllcache\beep.sys with <SYSTEM32>\dllcache\beep.sys.new
Malicious functions:
Creates and executes the following:
- %WINDIR%\xunlei
- %TEMP%\1.exe
Executes the following:
- <SYSTEM32>\cmd.exe /c %TEMP%\~DeL!.bAt
- <SYSTEM32>\cmd.exe /c %WINDIR%\RAV2007.BAT
- <SYSTEM32>\net.exe stop sharedaccess
- <SYSTEM32>\net1.exe stop sharedaccess
Modifies file system :
Creates the following files:
- %WINDIR%\RAV2007.BAT
- C:\Documents and Settings\LocalService\Favorites\Desktop.ini
- <SYSTEM32>\dllcache\beep.sys.new
- %WINDIR%\xunlei.dll
- %TEMP%\1.exe
- %TEMP%\~DeL!.bAt
- %WINDIR%\xunlei
Sets the 'hidden' attribute to the following files:
- %WINDIR%\xunlei.dll
- C:\Documents and Settings\LocalService\Favorites\Desktop.ini
- %TEMP%\~DeL!.bAt
- %WINDIR%\xunlei
Deletes the following files:
- %TEMP%\1.exe
Deletes itself.
Network activity:
Connects to:
- 'sh####shao.3322.org':8000
UDP:
- DNS ASK sh####shao.3322.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
