I've had a similar experience trying to install OpenCV. I use windows, and I couldn't figure out why something like OpenCV could possibly have malware with it.

I've had a similar experience trying to install OpenCV. I use windows, and I couldn't figure out why something like OpenCV could possibly have malware with it. When I downloaded it, chrome said "Stop! This is malware!" I thought that there was no way there could be a problem with the file unless Sorceforge was having issues. What fixed the issue for me was downloading from a different mirror. So perhaps some of the mirrors are compromised?