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Profil

Win32.HLLW.Autohit.16064

Added to the Dr.Web virus database: 2016-11-30

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe csrcs.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'csrcs' = '<SYSTEM32>\csrcs.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'csrcs' = '<SYSTEM32>\csrcs.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Executes the following:
  • '<SYSTEM32>\csrcs.exe'
Modifies file system:
Creates the following files:
  • %TEMP%\aut2.tmp
  • %TEMP%\fiullnl
  • <SYSTEM32>\csrcs.exe
  • %TEMP%\aut1.tmp
  • %TEMP%\codqarq
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\csrcs.exe
Deletes the following files:
  • %TEMP%\aut2.tmp
  • %TEMP%\fiullnl
  • %TEMP%\aut1.tmp
  • %TEMP%\codqarq