I have been running this application for many months now without issue. However, yesterday my company's anti-virus software would not let the program run and reported that the program VirtuaWinPortable was actually a virus: Mal/EncPk-OJ.
The antivirus software is Sophos Endpoint Security.
Any ideas?
Keep in mind I am not the administrator and cannot authorize the program, which would eliminate it as a threat.
Submit it to VirusTotal. That will give you a better indication of whether it is actually a virus or not.