Win32.HLLW.Autoruner.53225

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\spoolsv.exe"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\spoolsv.exe"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nvidia' = '%APPDATA%\nvidia\nvidia.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe "%APPDATA%\spoolsv.exe"'

Creates the following files on removable media:

Malicious functions:

To bypass firewall, removes or modifies the following registry keys:

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\spoolsv.exe' = '%APPDATA%\spoolsv.exe:*:Enabled:CityScape'

Creates and executes the following:

Executes the following:

<SYSTEM32>\netsh.exe firewall add allowedprogram "%APPDATA%\spoolsv.exe" CityScape Enable
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "nvidia" /t REG_SZ /d "%APPDATA%\nvidia\nvidia.exe" /f
<SYSTEM32>\cmd.exe /c """%TEMP%\APyxK.bat"" "

Modifies file system :

Creates the following files:

%APPDATA%\OnrNwFoQ
%APPDATA%\spoolsv.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\locate_my_ip[1]
%TEMP%\APyxK.bat
%APPDATA%\nvidia\nvidia.exe

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

Miscellaneous:

Searches for the following windows: