Win32.HLLW.Autoruner.51821

Added to the Dr.Web virus database: 2011-06-15

Virus description added: 2011-06-15

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update System' = '%APPDATA%\lsass.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Update System' = '%APPDATA%\lsass.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'UserFaultCheck' = ''

Creates the following files on removable media:

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

Malicious functions:

Creates and executes the following:

Injects code into

the following system processes:

Hides the following processes:

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\ADFDsddщGSjhgзйтззщLLL\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
%APPDATA%\lsass.exe

Miscellaneous:

Searches for the following windows: