MSET.EXE is Cloaked Malware and Malicious Software identified as a threat.
Behaviors:
* Uses rootkit techniques to conceal its presence, interrogation or removal
* Uses low level functions to hide itself from the user and from system/security processes
* Found on infected systems and resists interrogation by security products
* The Process is packed and/or encrypted using a software packing process
* Added as a Registry auto start to load Program on Boot up
* Registered as a Dynamic Link Library File
* Executed as a Process
* Created as a process on disk
[1] According to www.prevx.com it can also use over 50 different names in the system.
I suggest Downloading SUPERAntiSpyware here
http://www.superantispyware.com/
It has a Free version that will scan and clean "any" malware infection.
Also, go to Malwarebyte's website here
http://www.malwarebytes.org/mbam.php
Download Malwarebytes' Anti-Malware free version and install it and run another scan and clean the system.
Hope this helps. :)