Bernard Murphy
Moderator
This happened in December last year. It was a very sophisticated and carefully planned attack:
In case you're thinking the US must have much better systems and could protect better, think again. Security experts say that in several ways the Ukrainian grid systems are more secure than current American systems. And many US power control systems do not have manual backup support, meaning the only way to recover power is to reprogram or replace the controllers. It sounds like Ukraine grid operators are still working on replacing bricked controllers.
Couple of takeaways for me:
Inside the Cunning, Unprecedented Hack of Ukraine’s Power Grid | WIRED
- Started with spear-phishing - targeted in this case specifically at power grid operators. This attack started with an email with a Word attachment which when opened asked the recipient to enable macros. That macro launched malware which got into corporate networks but not the SCADA networks, which are separated by a firewall.
- The malware mapped networks and harvested user credentials used to get access to the SCADA VPNs. When they were able to get through, they launched firmware rewrites. They also installed malware to kill the operator stations at the time of attack.
- That said, once they realized what was happening, operators were able to restore power relatively quickly because their systems have manual circuit breaker overrides.
In case you're thinking the US must have much better systems and could protect better, think again. Security experts say that in several ways the Ukrainian grid systems are more secure than current American systems. And many US power control systems do not have manual backup support, meaning the only way to recover power is to reprogram or replace the controllers. It sounds like Ukraine grid operators are still working on replacing bricked controllers.
Couple of takeaways for me:
- All the automated security in the world can't protect against phishing which depends on human error and policies that allow attachments and links which can hide malware.
- Think the IoT and AI are going to put us all out of work? Think again. Automation is good at handling in-bounds behavior. As long as there are security threats, we'll always need manual overrides and out-of-the-box thinking
Inside the Cunning, Unprecedented Hack of Ukraine’s Power Grid | WIRED