US Warns of AI-Generated Malware Targeting Critical Infrastructure Systems

The U.S. government has issued a warning about an active threat campaign targeting critical infrastructure organisations using AI-generated exploit scripts. The attackers are focusing on Siemens S7 Series Programmable Logic Controllers (PLCs), which are widely used to control industrial equipment such as manufacturing lines, power systems, and water treatment facilities.

According to the warning, the malicious scripts are disguised as legitimate monitoring tools, making them harder to detect through routine checks. The activity appears aimed at reconnaissance and building further attack capabilities against these industrial control systems, rather than immediate disruption.

While this incident is centred on major U.S. critical infrastructure providers, it signals a broader trend: threat actors are increasingly using AI to develop and disguise malicious tools more quickly and convincingly. Australian businesses that operate industrial control systems, or supply services to critical infrastructure sectors, should take note, as similar tactics could be adapted for use against local targets.