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Win32.HLLW.Autoruner2.2704

Added to the Dr.Web virus database: 2014-01-24

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ffefff62eeeb896e2240f02c900d3fee' = '"%HOMEPATH%\server.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ffefff62eeeb896e2240f02c900d3fee' = '"%HOMEPATH%\server.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\server.exe' = '%HOMEPATH%\server.exe:*:Enabled:server.exe'
Creates and executes the following:
  • '%HOMEPATH%\server.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\server.exe" "server.exe" ENABLE
Modifies file system :
Creates the following files:
  • %HOMEPATH%\server.exe
Network activity:
Connects to:
  • 'ka#####iik.zapto.org':1177
UDP:
  • DNS ASK ka#####iik.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'