バックドアをもつフリーイメージ？

下記の記事が出ている。

　Backdoored images downloaded 5 million times finally removed from Docker Hub
　ars technica: June 14, 2018
　https://arstechnica.com/information-technology/2018/06/backdoored-images-downloaded-5-million-times-finally-removed-from-docker-hub/