Can you confirm that this file was downloaded from the official Buzzcoin website? The reason I ask is that it used to flag up with more warnings that just the one. Some of them listed it as 'PUP' - Potentially Unwanted Program. Others were unclear about what the problem might be, so they'd flag it anyway. It's a false positive - I myself have been running this wallet for months now and not a single problem. It is safe to make an exception for it in your AV software - AS LONG AS IT'S THE OFFICIAL VERSION!!!
(You can be doubly-sure by re-downloading it!)