I'm not sure if you noticed, but TrendMicro insists that StartIsBack+ download URL is malicious (check here). Not the file itself, nor the site, just the download URL. I suggest you tell them to reclassify the URL, and put a warning (that TM is broken and should be disabled to download the file) on the download page - in my experience, that's the fastest way to get AV companies to actually do something about false positives.