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Win32.HLLW.Autoruner2.7488

Aggiunto al database dei virus Dr.Web: 2014-02-19

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '48b8270168f7bb0bad826ddff1599170' = '"%TEMP%\Svchost.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '48b8270168f7bb0bad826ddff1599170' = '"%TEMP%\Svchost.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\48b8270168f7bb0bad826ddff1599170.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Svchost.exe' = '%TEMP%\Svchost.exe:*:Enabled:Svchost.exe'
Creates and executes the following:
  • '%TEMP%\Svchost.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Svchost.exe" "Svchost.exe" ENABLE
Modifies file system :
Creates the following files:
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
  • %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch.new
  • %TEMP%\Svchost.exe
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
Deletes the following files:
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.2900.120218
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.2900.120203
Moves the following files:
  • from %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch.new to %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch
  • from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.2900.120218
  • from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.2900.120203
  • from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
  • from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
Network activity:
Connects to:
  • 'hu####s.no-ip.org':1478
UDP:
  • DNS ASK hu####s.no-ip.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'