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Win32.HLLW.Autoruner2.14330

Added to the Dr.Web virus database: 2014-05-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '1d6da07ee114b8ebb2db39e00f0a232a' = '"%ALLUSERSPROFILE%\System32.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '1d6da07ee114b8ebb2db39e00f0a232a' = '"%ALLUSERSPROFILE%\System32.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\1d6da07ee114b8ebb2db39e00f0a232a.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ALLUSERSPROFILE%\System32.exe' = '%ALLUSERSPROFILE%\System32.exe:*:Enabled:System32.exe'
Creates and executes the following:
  • '%ALLUSERSPROFILE%\System32.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%ALLUSERSPROFILE%\System32.exe" "System32.exe" ENABLE
Modifies file system :
Creates the following files:
  • %ALLUSERSPROFILE%\System32.exe
Network activity:
Connects to:
  • 'ha####-17.no-ip.biz':5552
UDP:
  • DNS ASK ha####-17.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'
  • ClassName: 'Indicator' WindowName: '(null)'

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