Sometimes files protected with DEMO version of Enigma are detectable as virus. These are false positives detection of viruses, and it is problems of antivirus companies.
Note that files protected with FULL LICENSED version are not detectable as virus (only some non famous AV can still detect false positives).
For registered users: some AV sometimes generate false positives, how to eliminate their mistakes is written there http://enigmaprotector.com/forum/viewtopic.php?f=6&t=27