Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Classes\batfile\shell\open\command] '' = '"<SYSTEM32>\DirectX\Dinput\csrss.exe" "%1" %*'
- [<HKLM>\SOFTWARE\Classes\lnkfile\shell\open\command] '' = '"<SYSTEM32>\DirectX\Dinput\csrss.exe" "%1" %*'
- [<HKLM>\SOFTWARE\Classes\piffile\shell\open\command] '' = '"<SYSTEM32>\DirectX\Dinput\csrss.exe" "%1" %*'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,%WINDIR%\fonts\lsass.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'kb' = '<DRIVERS>\AUTO.TXT'
- [<HKLM>\SOFTWARE\Classes\comfile\shell\open\command] '' = '"<SYSTEM32>\DirectX\Dinput\csrss.exe" "%1" %*'
Creates or modifies the following files:
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\Empty.pif
Creates the following files on removable media:
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\Open.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
blocks the following features:
- System Restore (SR)
Creates and executes the following:
- '%WINDIR%\Fonts\lsass.exe'
Executes the following:
- '%WINDIR%\explorer.exe'
Terminates or attempts to terminate
the following user processes:
- nod32.exe
- MCAGENT.EXE
- ashAvast.exe
- avgcc.exe
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoShellSearchButton' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoSecurityTab' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoUserNameInStartMenu' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoSimpleStartMenu' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoFolderOptions' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoControlPanel' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoDrives' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoControlPanel' = '00000001'
Modifies file system :
Creates the following files:
- C:\Documents and Settings\Default User\My Documents\My Documents .exe
- C:\AUTORUN.INF
- %ALLUSERSPROFILE%\Documents\Music.exe
- <SYSTEM32>\config\systemprofile\My Documents\My Documents .exe
- %HOMEPATH%\My Documents\My Documents .exe
- %WINDIR%\Fonts\lsass.exe
- %WINDIR%\SoftwareDistribution\DataStore\Logs\lsass.exe
- %WINDIR%\SoftWareProtector\Kalonz2_out.pr
- C:\Open.exe
- %WINDIR%\Autorun.inf
- <SYSTEM32>\DirectX\Dinput\csrss.exe
Sets the 'hidden' attribute to the following files:
- C:\Open.exe
- C:\AUTORUN.INF
- <Drive name for removable media>:\AUTORUN.INF
- %WINDIR%\SoftwareDistribution\DataStore\Logs\lsass.exe
- <Drive name for removable media>:\Open.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Edit' WindowName: ''
- ClassName: 'ComboBox' WindowName: ''
- ClassName: 'ComboBoxEx32' WindowName: ''
- ClassName: '#32770' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'WorkerW' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: '' WindowName: 'Folder Options'
- ClassName: '' WindowName: 'Registry Editor'
- ClassName: 'RegEdit_RegEdit' WindowName: ''
- ClassName: '' WindowName: 'Local Settings'
- ClassName: 'RebarWindow32' WindowName: ''
- ClassName: 'CabinetWClass' WindowName: ''
- ClassName: 'ExploreWClass' WindowName: ''
