Win32.HLLW.Autoruner.56726

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA Media Center Library' = '%HOMEPATH%\%USERNAME%1\winlogon.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA Media Center Library' = '%HOMEPATH%\%USERNAME%1\winlogon.exe'

Creates the following files on removable media:

<Drive name for removable media>:\DrivesGuideInfo\svchost.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\DrivesGuideInfo\S-1-7-21-1439977401-7444491467-600013330-9141\Desktop.ini
<Drive name for removable media>:\DrivesGuideInfo\S-1-7-21-1439977401-7444491467-600013330-9141\svchost.exe

Malicious functions:

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

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\winlogon.exe' = '<SYSTEM32>\winlogon.exe:*:enabled:@shell32.dll,-1'

Creates and executes the following:

Injects code into

the following system processes:

Restores hooked functions in System Service Descriptor Table (SSDT).

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

%TEMP%\History\History.IE5\desktop.ini
%TEMP%\Temporary Internet Files\Content.IE5\MQMHH9Q0\desktop.ini
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\DrivesGuideInfo\S-1-7-21-1439977401-7444491467-600013330-9141\Desktop.ini
%TEMP%\Temporary Internet Files\Content.IE5\FS8RG7BV\desktop.ini
%TEMP%\Temporary Internet Files\Content.IE5\desktop.ini
%TEMP%\Temporary Internet Files\Content.IE5\IM6I5S0I\desktop.ini
%TEMP%\Temporary Internet Files\Content.IE5\K9MBK1EF\desktop.ini

Network activity:

Connects to:

'0-##############################0-0-0-0-1-0-1-0-1-1-1-1-1-1-1-.0-0-0-0-0-0-0-0-0-0-0-0-0-22-0-0-0-0-0-0-0-0-0-0-0-0-0.info':80
'localhost':1040
'il#.#renz.pl':80

TCP:

HTTP GET requests:

0-##############################0-0-0-0-1-0-1-0-1-1-1-1-1-1-1-.0-0-0-0-0-0-0-0-0-0-0-0-0-22-0-0-0-0-0-0-0-0-0-0-0-0-0.info/DATA

UDP:

DNS ASK 0-##############################0-0-0-0-1-0-1-0-1-1-1-1-1-1-1-.0-0-0-0-0-0-0-0-0-0-0-0-0-22-0-0-0-0-0-0-0-0-0-0-0-0-0.info
DNS ASK il#.#renz.pl

Miscellaneous:

Searches for the following windows: