Win32.HLLW.Autoruner.51581

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Yahoo Messengger' = '<SYSTEM32>\winfiles.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe winfiles.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:

blocks the following features:

Executes the following:

<SYSTEM32>\ntvdm.exe -f -id
<SYSTEM32>\ntvdm.exe -f -ie
<SYSTEM32>\ntvdm.exe -f -ic
<SYSTEM32>\ntvdm.exe -f -ia
<SYSTEM32>\ntvdm.exe -f -ib
<SYSTEM32>\ntvdm.exe -f -i12
<SYSTEM32>\ntvdm.exe -f -i13
<SYSTEM32>\ntvdm.exe -f -i11
<SYSTEM32>\ntvdm.exe -f -if
<SYSTEM32>\ntvdm.exe -f -i10
<SYSTEM32>\ntvdm.exe -f -i9
<SYSTEM32>\ntvdm.exe -f -i2
<SYSTEM32>\ntvdm.exe -f -i3
<SYSTEM32>\at.exe 09:00 /interactive /EVERY:m,t,w,th,f,s,su <SYSTEM32>\winfiles.exe
<SYSTEM32>\ntvdm.exe -f -i1
<SYSTEM32>\at.exe /delete /yes
<SYSTEM32>\ntvdm.exe -f -i7
<SYSTEM32>\ntvdm.exe -f -i8
<SYSTEM32>\ntvdm.exe -f -i6
<SYSTEM32>\ntvdm.exe -f -i4
<SYSTEM32>\ntvdm.exe -f -i5

Forces autoplay for removable media.

Modifies file system :

Creates the following files:

%WINDIR%\Temp\scs17.tmp
%WINDIR%\Temp\scs16.tmp
%WINDIR%\Temp\scs18.tmp
%WINDIR%\Temp\scs1A.tmp
%WINDIR%\Temp\scs19.tmp
%WINDIR%\Temp\scs15.tmp
%WINDIR%\Temp\scs11.tmp
%WINDIR%\Temp\scs10.tmp
%WINDIR%\Temp\scs12.tmp
%WINDIR%\Temp\scs14.tmp
%WINDIR%\Temp\scs13.tmp
%WINDIR%\Temp\scs22.tmp
%WINDIR%\Temp\scs21.tmp
%WINDIR%\Temp\scs23.tmp
%WINDIR%\Temp\scs25.tmp
%WINDIR%\Temp\scs24.tmp
%WINDIR%\Temp\scs20.tmp
%WINDIR%\Temp\scs1C.tmp
%WINDIR%\Temp\scs1B.tmp
%WINDIR%\Temp\scs1D.tmp
%WINDIR%\Temp\scs1F.tmp
%WINDIR%\Temp\scs1E.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\setting[1].nql
<SYSTEM32>\autorun.ini
<SYSTEM32>\setting.ini
%WINDIR%\Temp\scs4.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\setting[1].nql
%WINDIR%\Temp\scs3.tmp
%WINDIR%\winfiles.exe
<SYSTEM32>\winfiles.exe
%TEMP%\aut1.tmp
%WINDIR%\Temp\scs2.tmp
%WINDIR%\winnt.exe
%WINDIR%\Temp\scsC.tmp
%WINDIR%\Temp\scsB.tmp
%WINDIR%\Temp\scsD.tmp
%WINDIR%\Temp\scsF.tmp
%WINDIR%\Temp\scsE.tmp
%WINDIR%\Temp\scsA.tmp
%WINDIR%\Temp\scs6.tmp
%WINDIR%\Temp\scs5.tmp
%WINDIR%\Temp\scs7.tmp
%WINDIR%\Temp\scs9.tmp
%WINDIR%\Temp\scs8.tmp

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

Miscellaneous:

Searches for the following windows: