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Win32.HLLW.Autoruner2.5633

Added to the Dr.Web virus database: 2014-02-04

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\490e5f7917314dc44e213cbe67f16018.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\System32.exe' = '%TEMP%\System32.exe:*:Enabled:System32.exe'
Creates and executes the following:
  • '%TEMP%\System32.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\System32.exe" "System32.exe" ENABLE
Modifies file system :
Creates the following files:
  • %TEMP%\System32.exe
Network activity:
Connects to:
  • 'we####3.zapto.org':5552
UDP:
  • DNS ASK we####3.zapto.org