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Win32.HLLW.Autoruner2.16712
Added to the Dr.Web virus database:
2014-08-06
Virus description added:
2014-08-06
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'igfxtray Module' = '%WINDIR%\igfxtray.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup0' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP000.TMP\"'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\USB.exe
Malicious functions:
Creates and executes the following:
'%TEMP%\IXP000.TMP\igfxtray.exe'
'%TEMP%\RarSFX0\Minecraft.exe'
Executes the following:
'<SYSTEM32>\regsvr32.exe' /s %WINDIR%\msinet.ocx
'<SYSTEM32>\regsvr32.exe' /s %WINDIR%\mswinsck.ocx
'<SYSTEM32>\ntvdm.exe' -f -i1
Modifies file system :
Creates the following files:
%WINDIR%\mswinsck.ocx
%WINDIR%\Temp\scs2.tmp
%WINDIR%\msinet.ocx
%WINDIR%\Opened.dat
%WINDIR%\igfxtray.exe
%TEMP%\IXP000.TMP\igfxtray.exe
%TEMP%\RarSFX0\Minecraft.exe
%TEMP%\IXP000.TMP\startjar.bat
%WINDIR%\Temp\scs1.tmp
%TEMP%\IXP000.TMP\MinecraftLauncher.jar
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\USB.exe
<Drive name for removable media>:\autorun.inf
Deletes the following files:
%WINDIR%\Temp\scs2.tmp
%WINDIR%\Temp\scs1.tmp
Miscellaneous:
Searches for the following windows:
ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-bf0.bf4.380001'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'EDIT' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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