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Win32.HLLW.Autoruner3.2297

Added to the Dr.Web virus database: 2020-05-16

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Myprogram' = '%PROGRAMDATA%\Bigg.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\bigg.exe
  • <Drive name for removable media>:\autorun.inf
Modifies file system
Creates the following files
  • C:\bigg.exe
  • D:\bigg.exe
  • C:\autorun.inf
  • D:\autorun.inf
  • %WINDIR%\syswow64\bigg.exe
  • %PROGRAMDATA%\bigg.exe
  • C:\bigg\bigg.exe
  • %WINDIR%\bigg\bigg.exe
  • D:\bigg\bigg.exe
  • %PROGRAMDATA%\bigg\bigg.exe
  • %ProgramFiles%\bigg\bigg.exe
Sets the 'hidden' attribute to the following files
  • C:\bigg.exe
  • D:\bigg.exe
  • <Drive name for removable media>:\bigg.exe
  • C:\autorun.inf
  • D:\autorun.inf
  • <Drive name for removable media>:\autorun.inf
  • %WINDIR%\syswow64\bigg.exe
  • %PROGRAMDATA%\bigg.exe
  • C:\bigg\bigg.exe
  • %WINDIR%\bigg\bigg.exe
  • D:\bigg\bigg.exe
  • %PROGRAMDATA%\bigg\bigg.exe
  • %ProgramFiles%\bigg\bigg.exe
Network activity
Connects to
  • 'localhost':664
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\attrib.exe' +h c:\BIGG' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +h %WINDIR%\BIGG' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +h D:\BIGG' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +h %PROGRAMDATA%\BIGG' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +h %ProgramFiles%\Adobe\BIGG' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +h %ProgramFiles%\BIGG' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\attrib.exe' +h c:\BIGG
  • '%WINDIR%\syswow64\attrib.exe' +h %WINDIR%\BIGG
  • '%WINDIR%\syswow64\attrib.exe' +h D:\BIGG
  • '%WINDIR%\syswow64\attrib.exe' +h %PROGRAMDATA%\BIGG
  • '%WINDIR%\syswow64\attrib.exe' +h %ProgramFiles%\Adobe\BIGG
  • '%WINDIR%\syswow64\attrib.exe' +h %ProgramFiles%\BIGG

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