To get a false detection fixed you have to follow this method
Submit the file as per
You may have to disable real time scanning to zip the file up and send it Remember to reenable it.
You will get an immediate reply saying an analysis number (post that here) and saying I assume you are infected. Reply to this email changing the subject to Possible false detection Artemis!A8812955E623. Say why you think it is a false detection and where you got the file. If no fix in 4 days post back and I will bump this up the line.