Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, wscript.exe //B "%TEMP%\System\w32viewer_indexation.vbs"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,wscript.exe //B "%TEMP%\System\w32viewer_indexation.vbs"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Skype' = '"%ProgramFiles% (x86)\Skype\Phone\Skype.exe" /minimized /regrun, wscript.exe //B "%TEMP%\\archive_index\w32view_index.lnk"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Skype' = '"%ProgramFiles%\Skype\Phone\Skype.exe" /minimized /regrun, wscript.exe //B "%TEMP%\\archive_index\w32view_index.lnk"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'w32viewer_indexation' = '"%TEMP%\archive_index\w32view_index.lnk"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'w32view_indexation' = '"%TEMP%\archive_index\w32view_indexation.lnk"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'w32view_indexation' = '"%TEMP%\archive_index\w32view_indexation.lnk"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'w32viewer_indexation' = '"%TEMP%\archive_index\w32view_index.lnk"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\w32view_indexation.lnk
- %HOMEPATH%\Start Menu\Programs\Startup\w32viewer_indexation.lnk
Creates the following files on removable media:
- <Drive name for removable media>:\DCIM.lnk
- <Drive name for removable media>:\Games.lnk
- <Drive name for removable media>:\Movies.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Videos.lnk
Malicious functions:
Executes the following:
- '<SYSTEM32>\taskkill.exe' /F /IM bavtray.exe
Modifies file system:
Creates the following files:
- %ProgramFiles%\games\games\ccsetup542.exe
- %ProgramFiles%\games\games\wincloud.VBS
- %ProgramFiles%\games\games\Uninstall.exe
- %ProgramFiles%\games\games\Uninstall.ini
- %TEMP%\archive_index\w32view_index.lnk
- %TEMP%\openbydrive\w32view_indexation.vbe
- %TEMP%\System\w32viewer_indexation.vbs
- %TEMP%\openbydrive_index\w32viewer_indexation.vbe
- %TEMP%\archive_index\w32view_indexation.lnk
Sets the 'hidden' attribute to the following files:
- %ProgramFiles%\games\games\wincloud.VBS
Network activity:
Connects to:
- 'localhost':1037
- 'do#####re.dyndns.org':5052
UDP:
- DNS ASK do#####re.dyndns.org
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: ''
Creates and executes the following:
- '<SYSTEM32>\wscript.exe' "%ProgramFiles%\games\games\wincloud.VBS"
Executes the following:
- '<SYSTEM32>\schtasks.exe' /create /sc ONLOGON /RL HIGHEST /tn w32view_indexation.vbe /tr "%TEMP%\System\w32viewer_indexation.vbs"
