One of my dear friends at IBM, James Murphy, just posted an interesting bit of content on bigfix.me
and tweeted about it. James is not on the Forum here, so I am posting on his behalf.
https://twitter.com/jamesmurphy_gb/status/880397535084503040
Apparently there is a breadcrumb you can lay to protect vs some petya based malware:
BigFix.me content is here (but not tested yet):
https://www.bigfix.me/fixlet/details/24569