Substitutes the following executable system files:
<SYSTEM32>\dllcache\beep.sys with <SYSTEM32>\dllcache\beep.sys.new
<DRIVERS>\beep.sys with <DRIVERS>\beep.sys.new
Infects the following executable files:
<DRIVERS>\beep.sys
Malicious functions:
Creates and executes the following:
'<SYSTEM32>\360tray.exe'
Restores hooked functions in System Service Descriptor Table (SSDT).
Modifies file system :
Creates the following files:
%WINDIR%\Temp\31633.dat
<SYSTEM32>\360tray.dat
<SYSTEM32>\360tray.dll
%TEMP%\24694.dat
<SYSTEM32>\360tray.exe
Deletes the following files:
<SYSTEM32>\360tray.exe
<SYSTEM32>\360tray.dat
%TEMP%\24694.dat
%WINDIR%\Temp\31633.dat
Deletes itself.
Network activity:
Connects to:
'we####.meibu.com':2009
UDP:
DNS ASK we####.meibu.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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