SMSS.exe
Window’s operating systems have many processes that run behind the scenes. One of these processes is the SMSS.exe which is an execution file. Its full name is Session Management Subsystem.
This Session Manager Subsystem is responsible for starting a user’s session. The system thread is responsible for specific tasks like launching the Winlogon, other Win32 processes and setting the system variables.
Many users first notice the SMSS.exe process when the system shuts down abnormally, since when a system shuts down abnormally or unexpectedly, the SMSS.exe causes a “hang” and the system stops responding.
The SMSS.exe Trojan Version
The real SMSS.exe file is always located in the C:WindowsSystem32 folder. If you find an smss.exe in another folder, it is probably malware (a virus, spyware, trojan or worm).
Many malicious programs try to hide like legitimate computer processes such as the smss.exe trojan.
The malware that takes the form of smss.exe is a trojan called Flood.F.
Flood.F is a serious security risk that can steal or reveal sensitive data or documents like personal and financial information and be used for credit card fraud or identity theft.
The smss.exe Flood.F trojan can be removed with commercial applications such as MacAfee and Norton or other free applications found online.