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Win32.HLLW.Autoruner2.16423

Aggiunto al database dei virus Dr.Web: 2014-07-25

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ac38ad992c26305152b9c4a308c45d7a' = '"%TEMP%\system.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ac38ad992c26305152b9c4a308c45d7a' = '"%TEMP%\system.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\ac38ad992c26305152b9c4a308c45d7a.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\system.exe' = '%TEMP%\system.exe:*:Enabled:system.exe'
Creates and executes the following:
  • '%TEMP%\system.exe'
  • '%HOMEPATH%\Local Settings\Tempserver.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\system.exe" "system.exe" ENABLE
Modifies file system :
Creates the following files:
  • %TEMP%\system.exe
  • %HOMEPATH%\Local Settings\Tempserver.exe
Network activity:
Connects to:
  • 'sa####.no-ip.biz':5552
UDP:
  • DNS ASK sa####.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'