The ransomware has previously received little public scrutiny.

The targeted systems are just two of dozens of the group's attacks in the last year.

Five zero-days found in Aethon TUG robots included one that could allow an attacker to control the machines, Cynerio said.

It's going to track how its recommendations are implemented, and study some issues where it only scratched the surface.

Cyber MDX is known for its research into potential cyberthreats against connected health care devices like patient monitors and infusion pumps.

“Frankly, this human error got by us," a company representative said.

The malware shows a "significant level of autonomous decision-making ability."

Attacks on health care were among the most predominant.

Attackers caused outages that lasted more than a week, though details have been scant.