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Win32.HLLW.Autoruner1.23806
Added to the Dr.Web virus database:
2012-07-24
Virus description added:
2014-08-28
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:
Creates and executes the following:
'%WINDIR%\Fonts\lsass.exe'
Executes the following:
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: ''
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