Can confirm this. Just deployed another machine and recognized this while getting the image through firefox 59 on windows10 as well as arch linux(same FF 59.0.2).
Downloaded File MD5SUM hash for 6.2.10-seafile-pro matched to the original one.
I’ve gotten a lot of false positives over the years with Seafile and AV. I always disable my AV programs before downloading / installing any Seafile product.