Win32.HLLW.Autoruner1.29681

Added to the Dr.Web virus database: 2012-11-13

Virus description added: 2012-11-14

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft Drive Guard32' = '%HOMEPATH%\DrvGuard32.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\DrvGuard32.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:

[<HKCU>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '' = ':*:Enabled:GFdert32'

Creates and executes the following:

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\DrvGuard32.exe
%HOMEPATH%\DrvGuard32.exe

Deletes the following files:

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

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: