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Win32.HLLW.Autoruner2.15754

Added to the Dr.Web virus database: 2014-06-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '03a7e3e53ea6511c01afd03fd9277158' = '"%APPDATA%\Chrome Update.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '03a7e3e53ea6511c01afd03fd9277158' = '"%APPDATA%\Chrome Update.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\03a7e3e53ea6511c01afd03fd9277158.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\Chrome Update.exe' = '%APPDATA%\Chrome Update.exe:*:Enabled:Chrome Update.exe'
Creates and executes the following:
  • '%APPDATA%\Chrome Update.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\Chrome Update.exe" "Chrome Update.exe" ENABLE
Modifies file system :
Creates the following files:
  • %APPDATA%\Chrome Update.exe
Network activity:
Connects to:
  • 'ke##.zapto.org':1177
UDP:
  • DNS ASK ke##.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'

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