Adversaries may attempt to perform screen capture of devices in the control system environment. Screenshots may be taken of workstations, HMIs, or other devices that display environment-relevant process, device, reporting, alarm, or related data. These device displays may reveal information regarding the ICS process, layout, control, and related schematics. In particular, an HMI can provide a lot of important industrial process information.[1] Analysis of screen captures may provide the adversary with an understanding of intended operations and interactions between critical devices.

References

  1. ICS-CERT 2017, October 21 Advanced Persistent Threat Activity Targeting Energy and Other Critical Infrastructure Sectors Retrieved. 2017/10/23

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