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Win32.HLLW.Autoruner2.5550

Added to the Dr.Web virus database: 2014-02-06

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '46828d323277b8cf3589ab5a4c277d85' = '"%TEMP%\serveftp.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '46828d323277b8cf3589ab5a4c277d85' = '"%TEMP%\serveftp.exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\46828d323277b8cf3589ab5a4c277d85.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\serveftp.exe' = '%TEMP%\serveftp.exe:*:Enabled:serveftp.exe'
Creates and executes the following:
  • '%TEMP%\serveftp.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\serveftp.exe" "serveftp.exe" ENABLE
Modifies file system :
Creates the following files:
  • %TEMP%\serveftp.exe
Network activity:
Connects to:
  • 'ne#####p.serveftp.com':1177
UDP:
  • DNS ASK ne#####p.serveftp.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'