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Win32.HLLW.Autoruner2.3338

Added to the Dr.Web virus database: 2014-01-29

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ecc7c8c51c0850c1ec247c7fd3602f20' = '"%TEMP%\windows.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ecc7c8c51c0850c1ec247c7fd3602f20' = '"%TEMP%\windows.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\ecc7c8c51c0850c1ec247c7fd3602f20.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\windows.exe' = '%TEMP%\windows.exe:*:Enabled:windows.exe'
Creates and executes the following:
  • '%TEMP%\windows.exe'
  • '%HOMEPATH%\Local Settings\Tempkurdistan.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\windows.exe" "windows.exe" ENABLE
  • '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen %APPDATA%\kurd.jpg
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Recent\kurd.lnk
  • %HOMEPATH%\Recent\Application Data.lnk
  • %TEMP%\windows.exe
  • %APPDATA%\kurd.jpg
  • %HOMEPATH%\Local Settings\Tempkurdistan.exe
Network activity:
Connects to:
  • 'mi####1.zapto.org':8778
UDP:
  • DNS ASK mi####1.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'
  • ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'