Hackers are targeting water, food, energy, chemical, manufacturing and commercial facilities by taking aim at Siemens S7 Series programmable logic controllers (PLCs) and making use of artificial intelligence in the attacks, U.S. government agencies warned Wednesday.
It’s the latest government warning about attacks on critical infrastructure as the United States wages war against Iran, which the government blamed for a recent campaign against water and wastewater systems— but doesn’t mention in Wednesday’s alert.
The National Security Agency didn’t immediately respond to a request for comment about who was behind the attacks on the PLCs, which are used to control manufacturing processes.
The agencies said the attacks were an “active threat,” rather than a theoretical one. The attacks could disrupt critical industrial processes, cause safety incidents or lead to the compromise of sensitive data.
Wednesday’s alert from the NSA, Cybersecurity and Infrastructure Security Agency, FBI, Energy Department and Environmental Protection Agency makes special note of the hackers using AI-generated exploitation scripts in the attacks.
“Using AI to generate exploitation scripts represents an evolution in threat actor capabilities, dramatically reducing the technical expertise and time required to develop working ICS exploitation scripts and malicious tools,” the alert states. “In addition, AI enables adversaries to rapidly leverage additional attack vectors and adapt to defensive measures. Threat actors can easily collect public information about vulnerabilities and weaknesses, find exposed and exploitable PLCs, and use AI-generated scripts to act on that information.”
A former top CISA official, Michael Garcia, thought that it was a first for the agency in one of its cybersecurity advisories (CSAs) about operational technology (OT).