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Win32.HLLW.Autoruner2.7072
Added to the Dr.Web virus database:
2014-02-16
Virus description added:
2014-02-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'IgrfxTray' = '<Current directory>\IgrfxTray.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'IgrfxTray' = '<Current directory>\IgrfxTray.exe'
Malicious functions:
Creates and executes the following:
'%APPDATA%\Microsoft\Windows\Themes\IgrfxTray.exe'
Executes the following:
'<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen %APPDATA%\Microsoft\Windows\Themes\IMG_20140127.jpg
Modifies file system :
Creates the following files:
%APPDATA%\Microsoft\libhlp32.exe
%APPDATA%\Microsoft\zlib1.dll
%HOMEPATH%\Recent\Themes.lnk
%HOMEPATH%\Recent\IMG_20140127.lnk
%APPDATA%\Microsoft\Windows\Themes\IgrfxTray.exe
%APPDATA%\Microsoft\Windows\Themes\IMG_20140127.jpg
%APPDATA%\Microsoft\pthreadGC2.dll
%APPDATA%\Microsoft\libcurl-4.dll
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
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