Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ctfmon' = '%ALLUSERSPROFILE%\Application Data\services.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'krnl32 dllhost' = '<DRIVERS>\dllhost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svchost' = '<DRIVERS>\svchost.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.exe
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
Creates and executes the following:
- %ALLUSERSPROFILE%\Application Data\services.exe
- <DRIVERS>\dllhost.exe
- <DRIVERS>\svchost.exe
Modifies settings of Windows Explorer:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoDrives' = '00000004'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoControlPanel' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoFolderOptions' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoStartMenuMorePrograms' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoClose' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoFind' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoRun' = '00000001'
Modifies file system :
Creates the following files:
- <DRIVERS>\dllhost.exe
- %ALLUSERSPROFILE%\Application Data\services.exe
- C:\Autorun.exe
- C:\Autorun.inf
- <DRIVERS>\svchost.exe
Sets the 'hidden' attribute to the following files:
- %ALLUSERSPROFILE%\Application Data\services.exe
- C:\Autorun.exe
- <Drive name for removable media>:\Autorun.exe
- <DRIVERS>\dllhost.exe
- C:\Autorun.inf
- <Drive name for removable media>:\Autorun.inf
- <DRIVERS>\svchost.exe
Deletes the following files:
- %TEMP%\~DFC041.tmp
- %TEMP%\~DFF298.tmp
- %TEMP%\~DFFF78.tmp
- %TEMP%\~DFF27A.tmp
- %TEMP%\~DFD57B.tmp
- %TEMP%\~DFE403.tmp
- %TEMP%\~DFE449.tmp
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '' WindowName: 'Command Prompt'
- ClassName: '' WindowName: 'System Configuration Utility'