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Win32.HLLW.Autoruner2.13973

Added to the Dr.Web virus database: 2014-05-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'e160a1aae7badbab7ca087d603d9d0ee' = '"%APPDATA%\TaskManger.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'e160a1aae7badbab7ca087d603d9d0ee' = '"%APPDATA%\TaskManger.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\e160a1aae7badbab7ca087d603d9d0ee.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\TaskManger.exe' = '%APPDATA%\TaskManger.exe:*:Enabled:TaskManger.exe'
Creates and executes the following:
  • '%APPDATA%\TaskManger.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\TaskManger.exe" "TaskManger.exe" ENABLE
Modifies file system :
Creates the following files:
  • %APPDATA%\TaskManger.exe
Network activity:
Connects to:
  • 'tr####y.zapto.org':1177
UDP:
  • DNS ASK tr####y.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'