Mysterious New Ransomware Targets Industrial Control Systems
Now, a malware sample has surfaced that uses specific knowledge of control systems to target them with a far blunter, and more familiar, tactic: Kill the target's software processes, encrypt the underlying data, and hold it hostage. Over the last month, researchers at security firms including Sentinel One and Dragos have puzzled over a piece of code called Snake or EKANS, which they now believe is specifically designed to target industrial control systems, the software and hardware used in everything from oil refineries to power grids to manufacturing facilities. But EKANS also uses another trick to ratchet up the pain: It's designed to terminate 64 different software processes on victim computers, including many that are specific to industrial control systems. EKANS is actually the second ransomware to hit industrial control systems. According to Dragos, another ransomware strain known as Megacortex that first appeared last spring included all of the same industrial control system process-killing features, and may in fact be a predecessor to EKANS developed by the same hackers.