Win32.HLLW.Autoruner.51591

Added to the Dr.Web virus database: 2011-06-10

Virus description added: 2011-06-14

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdate' = '%APPDATA%\msconfig.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdate' = '%APPDATA%\msconfig.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft® Windows® Operating System' = '%APPDATA%\Microsoft\Protect\Credentials'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\DFGDFJJJJDFJDFJGFDJTURTURUTJJF\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
<Drive name for removable media>:\DFGDFJJJJDFJDFJGFDJTURTURUTJJF\DFG-2352-26235-2322322-624621221-2622255\Desktop.ini

Malicious functions:

Creates and executes the following:

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

%APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe
<Drive name for removable media>:\DFGDFJJJJDFJDFJGFDJTURTURUTJJF\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
%APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
%APPDATA%\msconfig.exe

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: