What are these Somoto Virus files?

Hello! My friend was on my PC last night, and he watched some porn and i got pissed. so i scanned my pc and this is the log i know what PUP is but i looked at all the files and they where .EXE files, They where called "Setup.exe" so i was just asking is this a new virus, rogue, worm, ect. "i am 17 by the way" i was just asking what this "Somoto" files. thank you for reading here is the mbam log

Malwarebytes Anti-Malware 1.75.0.1300
www.malwarebytes.org

Database version: v2014.03.25.09

Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 10.0.9200.16798
michael :: MICHAEL-PC [administrator]

3/25/2014 5:02:28 PM
mbam-log-2014-03-25 (17-02-28).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 243807
Time elapsed: 5 minute(s), 55 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 6
C:\Users\michael\AppData\Local\Temp\bitool.dll (PUP.Optional.Somoto) -> Quarantined and deleted successfully.
C:\Users\michael\AppData\Local\Temp\nsm2F44.tmp (PUP.Optional.Somoto) -> Quarantined and deleted successfully.
C:\Users\michael\AppData\Local\Temp\nso94E.tmp (PUP.Optional.Somoto) -> Quarantined and deleted successfully.
C:\Users\michael\Local Settings\Temporary Internet Files\Content.IE5\UP9CUHET\setup[1].exe (PUP.Optional.Somoto) -> Quarantined and deleted successfully.
C:\Users\michael\Local Settings\Temporary Internet Files\Content.IE5\WVYPGD47\BiTool[2].dll (PUP.Optional.Somoto) -> Quarantined and deleted successfully.
C:\Users\michael\Local Settings\Temporary Internet Files\Content.IE5\ZIKNA455\setup[1].exe (PUP.Optional.Somoto) -> Quarantined and deleted successfully.

(end)