Win32.HLLW.Autoruner1.18222

Added to the Dr.Web virus database: 2012-06-22

Virus description added: 2012-07-13

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsSystem32' = '%CommonProgramFiles%\System\uacs.exe'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\autorun.exe
<Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini

Malicious functions:

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

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%CommonProgramFiles%\System\uacs.exe' = '%CommonProgramFiles%\System\uacs.exe:*:Enabled:WindowsSystem32'

Creates and executes the following:

Terminates or attempts to terminate

the following user processes:

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\autorun.exe
%CommonProgramFiles%\System\uacs.exe

Network activity:

Connects to:

UDP: