~2015, "DevShare". They wrapped open-source software downloads with opt-out adware and PUPs (potentially unwanted programs), without the original developers' consent in some cases. They took over abandoned/unmaintained projects (like GIMP for Windows, VLC, etc.) and replaced the original download with their adware-wrapped version.

Note that it's meaningless to call out "PUPs" as that category includes many things that are developed and distributed on sourceforge, like torrent clients.