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Profil

Win32.HLLW.Autoruner2.5512

Added to the Dr.Web virus database: 2014-02-05

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '2ad8d984bfc960b9426eecbec660a9bc' = '"%TEMP%\crss.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '2ad8d984bfc960b9426eecbec660a9bc' = '"%TEMP%\crss.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\crss.exe' = '%TEMP%\crss.exe:*:Enabled:crss.exe'
Creates and executes the following:
  • '%TEMP%\crss.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\crss.exe" "crss.exe" ENABLE
Modifies file system :
Creates the following files:
  • %TEMP%\crss.exe
Network activity:
Connects to:
  • 'ok####23.zapto.org':81
UDP:
  • DNS ASK ok####23.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'