Win32.HLLW.Autoruner1.25174

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe WinService.exe'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\CloseWindow.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

blocks execution of the following system utilities:

Command Prompt (CMD)
Windows Task Manager (Taskmgr)

blocks the following features:

System Restore (SR)

Executes the following:

<SYSTEM32>\attrib.exe +h +a +s +r S:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r R:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r R:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r T:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r T:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r S:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r P:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r O:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r O:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r Q:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r Q:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r P:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r Y:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r X:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r X:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r Z:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r Z:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r Y:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r V:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r U:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r U:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r W:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r W:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r V:\autorun.inf
<SYSTEM32>\attrib.exe +h +s +a +r N:\autorun.inf
<SYSTEM32>\attrib.exe +h +s +a +r F:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r F:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r E:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r H:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r G:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r G:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r C:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r C:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r <SYSTEM32>\WinService.exe
<SYSTEM32>\attrib.exe +h +a +s +r E:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r <Drive name for removable media>:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r <Drive name for removable media>:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r L:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r L:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r K:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r N:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r M:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r M:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r I:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r I:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r H:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r K:\CloseWindow.exe
<SYSTEM32>\attrib.exe +h +s +a +r J:\autorun.inf
<SYSTEM32>\attrib.exe +h +a +s +r J:\CloseWindow.exe

Modifies settings of Windows Explorer:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoRun' = '00000001'

Modifies file system :

Creates the following files:

C:\autorun.inf
C:\CloseWindow.exe
<SYSTEM32>\WinService.exe

Sets the 'hidden' attribute to the following files:

C:\autorun.inf
<Drive name for removable media>:\CloseWindow.exe
<Drive name for removable media>:\autorun.inf
<Full path to virus>
<SYSTEM32>\WinService.exe
C:\CloseWindow.exe

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information