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Win32.HLLW.Autoruner1.34778
Added to the Dr.Web virus database:
2013-04-02
Virus description added:
2013-04-11
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'nontay' = '%WINDIR%\nontay.exe hlmrun'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'non tay' = '%WINDIR%\non tay.exe hcurun'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe %WINDIR%\non tay.exe shell'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '%WINDIR%\nontay.exe init'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe %WINDIR%\non tay.exe'
Creates the following files on removable media:
<Drive name for removable media>:\Non Tay.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\NONTAY.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
hidden files
file extensions
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Registry Editor (RegEdit)
Creates and executes the following:
%WINDIR%\non tay.exe first
%WINDIR%\nontay.exe first
Executes the following:
%WINDIR%\explorer.exe <Current directory>\<Virus name>
Modifies settings of Windows Explorer:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
Modifies file system :
Creates the following files:
%WINDIR%\Resources\Themes\Luna.exe
%WINDIR%\Resources\Themes\Luna\.exe
%WINDIR%\Resources\Themes\Luna\Shell.exe
%WINDIR%\Resources\.exe
%WINDIR%\Resources\Themes.exe
%WINDIR%\Resources\Themes\.exe
%WINDIR%\Resources\Themes\Luna\Shell\.exe
%WINDIR%\addins\.exe
C:\Far2.exe
C:\Far2\Encyclopedia.exe
%WINDIR%\Resources\Themes\Luna\Shell\Metallic.exe
%WINDIR%\Resources\Themes\Luna\Shell\Metallic\.exe
%WINDIR%\addins.exe
%WINDIR%\Resources.exe
%WINDIR%\non tay.exe
<Auxiliary element>
C:\Non Tay.exe
C:\NONTAY.exe
%WINDIR%\nontay.exe
C:\autorun.inf
%PROGRAM_FILES%\NetMeeting\.exe
%WINDIR%.exe
%WINDIR%\.exe
%PROGRAM_FILES%.exe
%PROGRAM_FILES%\.exe
%PROGRAM_FILES%\NetMeeting.exe
Sets the 'hidden' attribute to the following files:
%WINDIR%\Resources\Themes\Luna.exe
%WINDIR%\Resources\Themes\Luna\.exe
%WINDIR%\Resources\Themes\.exe
%WINDIR%\Resources\.exe
%WINDIR%\Resources\Themes.exe
%WINDIR%\Resources\Themes\Luna\Shell.exe
%WINDIR%\addins.exe
%WINDIR%\addins\.exe
%WINDIR%\Resources\Themes\Luna\Shell\Metallic\.exe
%WINDIR%\Resources\Themes\Luna\Shell\.exe
%WINDIR%\Resources\Themes\Luna\Shell\Metallic.exe
%WINDIR%\non tay.exe
<Drive name for removable media>:\autorun.inf
%WINDIR%\nontay.exe
C:\NONTAY.exe
<Drive name for removable media>:\NONTAY.exe
C:\autorun.inf
%WINDIR%\.exe
%WINDIR%\Resources.exe
%PROGRAM_FILES%\NetMeeting\.exe
%PROGRAM_FILES%\.exe
%PROGRAM_FILES%\NetMeeting.exe
Deletes the following files:
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: ''
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