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Win32.HLLW.Autoruner2.1307

Added to the Dr.Web virus database: 2013-12-31

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '065c572a1097882b1a6f74bf95dde9b1' = '"%APPDATA%\win23..exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '065c572a1097882b1a6f74bf95dde9b1' = '"%APPDATA%\win23..exe" ..'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\065c572a1097882b1a6f74bf95dde9b1.exe
Creates the following files on removable media:
  • <Drive name for removable media>:\065c572a1097882b1a6f74bf95dde9b1.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\win23..exe' = '%APPDATA%\win23..exe:*:Enabled:win23..exe'
Creates and executes the following:
  • '%APPDATA%\win23..exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\win23..exe" "win23..exe" ENABLE
Modifies file system :
Creates the following files:
  • %APPDATA%\win23..exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\065c572a1097882b1a6f74bf95dde9b1.exe
Network activity:
Connects to:
  • 'ba####y.no-ip.info':1177
UDP:
  • DNS ASK ba####y.no-ip.info
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'