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Win32.HLLW.Autoruner2.14625

Added to the Dr.Web virus database: 2014-05-22

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'd555d1f3e2f6b1f24effec7a27a150bf' = '"%TEMP%\fdsgfdh.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'd555d1f3e2f6b1f24effec7a27a150bf' = '"%TEMP%\fdsgfdh.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\d555d1f3e2f6b1f24effec7a27a150bf.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\fdsgfdh.exe' = '%TEMP%\fdsgfdh.exe:*:Enabled:fdsgfdh.exe'
Creates and executes the following:
  • '%TEMP%\fdsgfdh.exe'
  • '%HOMEPATH%\Local Settings\Tempserver.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\fdsgfdh.exe" "fdsgfdh.exe" ENABLE
Modifies file system :
Creates the following files:
  • %TEMP%\fdsgfdh.exe
  • %HOMEPATH%\Local Settings\Tempserver.exe
Network activity:
Connects to:
  • 'ma####2.no-ip.org':81
UDP:
  • DNS ASK ma####2.no-ip.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'