chicksdaddy writes: A sample of malicious software discovered at the site of a December, 2016 cyber attack on Ukraine's electrical grid is a previously unknown program that could be capable of causing physical damage to the electrical grid, according to reports by two security firms. The Security Ledger reports: "Experts at the firm ESET and Dragos Security said on Monday that the malicious software, dubbed CrashOverride (Dragos) or Industroyer (ESET) affected a 'single transmission level substation' in the Ukraine attack on December 17th, 2016 in what appears to have been a test run. Still, experts said that features in the malware show that adversaries are automating and standardizing what were previously manual attacks against critical infrastructure, while also adding features that could be used to physically disable or damage critical systems -- the first evidence of such activity since the identification of the Stuxnet malware in 2010. The Crash Override malware 'took an approach to understand and codify the knowledge of the industrial process to disrupt operations as STUXNET (sp) did,' wrote Dragos Security in a report. The malware improves on features seen in other malicious software that it knows to target industrial control systems. Specifically, the malware makes use of and manipulates industrial control system-specific communications protocols. That's similar to features in ICS malware known as Havex that targeted grid operators in Europe and the United States in 2014. The Crash Override malware also targeted the libraries and configuration files of so-called 'Human Machine Interfaces' (or HMIs) to understand the environment they have infected. It can use HMIs, which provide a graphical interface for managing industrial control system equipment, to connect spread to other Internet connected equipment and systems, Dragos said."