Why am I seeing this?

You are seeing this page because your computer is infected. You should contact your IT support or IT security and get help. Do not close this page and make sure to show this to the people helping you. The computer is infected using the tool on this github page.

More details about this can be found on this blog post: https://trustedsec.com/blog/specula-turning-outlook-into-a-c2-with-one-registry-change