Win32.HLLW.Autoruner1.55668

Added to the Dr.Web virus database: 2013-09-11

Virus description added: 2013-09-11

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS4' = '<SYSTEM32>\bad3.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Msmsgs' = '<SYSTEM32>\Msmsgs.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS3' = '<SYSTEM32>\bad2.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS1' = '<SYSTEM32>\system.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS2' = '<SYSTEM32>\bad1.exe'

Creates the following files on removable media:

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

blocks execution of the following system utilities:

Terminates or attempts to terminate

the following system processes:

Modifies settings of Windows Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = '00000001'

Forces autoplay for removable media.

Modifies file system :

Creates the following files:

%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\bad1[1].exe
<SYSTEM32>\msmsgs.exe
%WINDIR%\autorun.inf

Sets the 'hidden' attribute to the following files:

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP: