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Win32.HLLW.Autoruner2.5068

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

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'c7c05061ce83a6367c13de7689ffb793' = '"%WINDIR%\system.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'c7c05061ce83a6367c13de7689ffb793' = '"%WINDIR%\system.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\c7c05061ce83a6367c13de7689ffb793.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\system.exe' = '%WINDIR%\system.exe:*:Enabled:system.exe'
Creates and executes the following:
  • '%WINDIR%\system.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%WINDIR%\system.exe" "system.exe" ENABLE
Modifies file system :
Creates the following files:
  • %WINDIR%\system.exe
Network activity:
Connects to:
  • 'ja#####ipt.no-ip.biz':1177
UDP:
  • DNS ASK ja#####ipt.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'