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Industrial Control System (ICS)/SCADA systems have been the talk of the security community for the last three or more years due to Stuxnet, Duqu, and other similar noteworthy attacks. While the importance and lack of security around ICS systems are well documented and widely known, I’ve been researching Internet-facing ICS/SCADA systems, who’s really attacking them, and why. Recently, I spoke at BlackHat Europe about the same research and wrote a research paper to share my findings.

Without knowing if Internet-facing SCADA systems were attacked, I developed a honeypot architecture that would emulate several types of SCADA and ICS devices mimicking those commonly found on these systems. The honeypots included traditional vulnerabilities found across the same or similar systems, showcasing a very realistic honeypot environment.

The findings include real-world attacks from several countries with varying attack attempts.

Figure 1. Percentage of attacks per country

In addition to the statistics gathered about the source of attacking country, my research includes some specific vulnerabilities that threat actors attempted to exploit. Included in some of the attacks I found were an attempt to spearphish a site administrator and a bid to exploit fundamental ICS protocols.

Our expectation is that attack trends will continue to increase in the ICS arena, with possible far reaching consequences. With continued diligence and utilizing secure computing techniques, your ability to deflect and defend these attacks will help secure your organization. For more information about these findings, you may read my report “Who’s Really Attacking Your ICS Equipment?” and find out details of some of these attacks and who are some primary offenders.