Win32.HLLM.Breacuk.10

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xbkil' = '%WINDIR%\Tasks\yupqh.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nxssp' = '%WINDIR%\Fonts\yupqh.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'reybi' = '%WINDIR%\system\yupqh.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'wpvjw' = '<SYSTEM32>\yupqh.exe'

Creates or modifies the following files:

Infects the following executable system files:

Substitutes the following executable system files:

<SYSTEM32>\dllcache\msconfig.exe with <SYSTEM32>\dllcache\msconfig.exe.new
%WINDIR%\pchealth\helpctr\binaries\msconfig.exe with %WINDIR%\pchealth\helpctr\binaries\msconfig.exe.new

Malicious functions:

Executes the following:

%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://www.po###rone.com/ad2_03/images/pc0132hb072.jpg

Modifies file system :

Creates the following files:

%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\pc0132hb072[1].jpg
%WINDIR%\Fonts\yupqh.exe
%WINDIR%\pchealth\helpctr\binaries\msconfig.exe.new
<SYSTEM32>\dllcache\msconfig.exe.new
C:\Far2\Far..exe
<SYSTEM32>\yupqh.exe
%WINDIR%\system\systray.exe
%WINDIR%\system\msconfig.exe
%WINDIR%\wupdmgr.exe
%WINDIR%\system\yupqh.exe
%WINDIR%\command.com

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

Miscellaneous:

Searches for the following windows: