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Win32.HLLW.Autoruner2.16415

Added to the Dr.Web virus database: 2014-07-25

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '9f65143081505e9299671474a342d55e' = '"%APPDATA%\vlx.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '9f65143081505e9299671474a342d55e' = '"%APPDATA%\vlx.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\vlx.exe' = '%APPDATA%\vlx.exe:*:Enabled:vlx.exe'
Creates and executes the following:
  • '%APPDATA%\vlx.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\vlx.exe" "vlx.exe" ENABLE
Modifies file system :
Creates the following files:
  • %APPDATA%\vlx.exe
Network activity:
Connects to:
  • 'lo####ain.no-ip.biz':5552
UDP:
  • DNS ASK lo####ain.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'