Win32.HLLW.Autoruner1.13634

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'msinit' = '<SYSTEM32>\msinit.bat'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\RECYCLER\S-1-5-21-790565478-1060287698-527137240-2506\msinit1.bat

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

Executes the following:

%WINDIR%\sleep.exe 2
<SYSTEM32>\attrib.exe +r +s +h E:\autorun.inf
<SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "NoDriveTypeAutoRun" /t REG_DWORD /d "0x91" /f
<SYSTEM32>\attrib.exe +s +h del.bat
<SYSTEM32>\attrib.exe +r +s +h E:\RECYCLER\S-1-5-21-790565478-1060287698-527137240-2506\msinit.bat
<SYSTEM32>\attrib.exe +r +s +h <SYSTEM32>\msinit.bat
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "msinit" /t REG_SZ /d "<SYSTEM32>\msinit.bat" /f
<SYSTEM32>\attrib.exe -r +s +h "<DRIVERS>\etc\hosts"
<SYSTEM32>\attrib.exe -r -a -s -h <DRIVERS>\etc\hosts
<SYSTEM32>\reg.exe add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v "ShowSuperHidden" /t REG_DWORD /d "0" /f
<SYSTEM32>\reg.exe add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v "Hidden" /t REG_DWORD /d "2" /f
<SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\ShowAll" /v "CheckedValue" /t REG_DWORD /d "0" /f

Forces autoplay for removable media.

Modifies file system :

Creates the following files:

<Current directory>\tmp1.bat
%TEMP%\2831.bat
<SYSTEM32>\123321.bat
<Current directory>\del.bat
<Current directory>\tmp2.bat
%APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\67d1614d-7721-49f2-b99e-3e7a5c2cb035
%APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\Preferred
%APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\5f20925ad2c5776d06c97fc8ee4a524c_23ef5514-3059-436f-a4a7-4cefaab20eb1
%APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\549b9b645cadfe6bb4bc69cf363c354c_23ef5514-3059-436f-a4a7-4cefaab20eb1

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\RECYCLER\S-1-5-21-790565478-1060287698-527137240-2506\msinit.bat
<Current directory>\del.bat
<SYSTEM32>\msinit.bat
%TEMP%\2831.bat
<Drive name for removable media>:\autorun.inf

Deletes the following files:

Moves the following system files:

Substitutes the HOSTS file.

Deletes itself.

Miscellaneous:

Searches for the following windows: