I noticed this in my 'Security Report' this morning. I went ahead and deleted it from my 'Quarantined Items'.
After restarting and running Getsusp/Stinger/Rootkit Remover/Malwarebytes/McAfee 'Full Scan'. All seems to be OK. Other than periodically intentionally testing my Protection with the Eicar Test String. This is the only time in which I have experienced any Detections.
I guess you can attribute it to Lack of sleep. I must admit I neglected to record it. However, in addition to the Artemis! number. It listed 'MMSUdate_2151.exe'