The file MSSIGN16.DLL can destroy your system, thus making the computer to work abnormally.
MSSIGN16.DLL is a dangerous file.
RemoveMSSIGN16.DLL from your computer immediately.
Kill the process MSSIGN16.DLL and remove MSSIGN16.DLL from the Windows startup.

MSSIGN16.DLL Information and Removal:
MSSIGN16.DLL is known as: Trojan-Downloader.Win32.Agent.grcn [Kaspersky Lab] packed with PE_Patch [Kaspersky Lab].
MD5 of MSSIGN16.DLL = 1C919EE58AABF19BB579F3FF16B62C27
MSSIGN16.DLL size is 24576 bytes.
Full path on a computer: %SYSTEM%\MSSIGN16.DLL
Related Files:
%SYSTEM%\MSSIGN16.DLL