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Profil

Win32.HLLW.Autoruner1.57556

Added to the Dr.Web virus database: 2013-10-04

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'cttmon.exe' = '<SYSTEM32>\cttmon.exe'
Creates or modifies the following files:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\Microsoft® DirectX Diagnostic Tool Updates.lnk
  • %HOMEPATH%\Start Menu\Programs\Startup\Microsoft® DirectX Diagnostic Tool Updates.lnk
Creates the following files on removable media:
  • <Drive name for removable media>:\SpoolBin.exe
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • 'C:\RECYCLER\S-1-5-21-2847125355-358004884-1566868893-1122\csrss.exe'
  • 'C:\RECYCLER\S-1-5-21-2847125355-358004884-1566868893-1122\smss.exe'
Modifies file system :
Creates the following files:
  • C:\SpoolBin.exe
  • C:\autorun.inf
  • C:\RECYCLER\s-1-5-21-448539723-1482476501-725345543-1005\{e9012ace45d-e89121acd-de891edc}-ms\2013-06-27-06-30-43-PM.ini
  • C:\RECYCLER\S-1-5-21-2847125355-358004884-1566868893-1122\csrss.exe
  • C:\RECYCLER\S-1-5-21-2847125355-358004884-1566868893-1122\smss.exe
  • <SYSTEM32>\dxdiagupdt.exe
  • <SYSTEM32>\cttmon.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • C:\SpoolBin.exe
  • C:\RECYCLER\S-1-5-21-2847125355-358004884-1566868893-1122\csrss.exe
  • <Drive name for removable media>:\SpoolBin.exe
  • <SYSTEM32>\cttmon.exe
  • C:\RECYCLER\S-1-5-21-2847125355-358004884-1566868893-1122\smss.exe
  • C:\autorun.inf
  • <SYSTEM32>\dxdiagupdt.exe
Deletes the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\SpoolBin.exe
  • %TEMP%\~DF3FAD.tmp
  • %TEMP%\~DF58F7.tmp
Moves itself:
  • from <Full path to virus> to %PROGRAM_FILES%\Temporary downloads\Active scritps\{89756EC-89913CB-00F1CE}-TIP\HIVE06271363039PM.exe
Deletes itself.
Miscellaneous:
Searches for the following windows:
  • ClassName: '(null)' WindowName: '0 Sm9ssE2039 E smss.exe 893'
  • ClassName: '(null)' WindowName: '0 Sm9ssE2039 E csrss.exe 893'
  • ClassName: '(null)' WindowName: '0 Sm9ssE2039 E INSTALLER 893'
  • ClassName: '(null)' WindowName: '0 Sm9ssE2039 E SpoolBin.exe 893'