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Ukraine Utility Cyber Attack Wider Than Reported, Claim Experts

Ukraine Utility Cyber-Attack Wider Than Reported, Claim Experts

By Reuters | Updated: 5 January 2016 18:24 IST

A central European security software firm said on Monday that a cyber-attack last month in Ukraine was broader than initially reported last week when the nation's secret police blamed a power outage on Russia.

Western Ukraine power company Prykarpattyaoblenergo reported an outage on Dec. 23, saying the area affected included regional capital Ivano-Frankivsk. Ukraine's SBU state security service responded by blaming Russia and the energy ministry in Kiev set up a commission to investigate the matter.

While Prykarpattyaoblenergo was the only Ukraine electric firm that reported an outage, similar malware was found in the networks of at least two other utilities, said Robert Lipovsky, senior malware researcher at Bratislava-based security company ESET. He said they were ESET customers, but declined to name them or elaborate.

"The reported case was not an isolated incident," he said.

Prykarpattyaoblenergo publicly blamed its outage on "interference" in the working of its system. The Kremlin did not respond to a request for comment.

Researchers with computer security firms Trend Micro and iSight Partners said ESET's assessment that the attackers sought to infect other utilities appeared credible, shedding new light on evidence that this is the first power outage proven to have been caused by a cyber-attack. Experts have warned for years, with growing urgency, that electric utilities are vulnerable to cyber-attacks that could cut power.

"This is the first time we have proof and can tie malware to a particular outage," said Trend Micro senior researcher Kyle Wilhoit. "It is pretty scary."

Cyber firm iSight Partners said that ESET's report of multiple attacks is consistent with its own analysis.

"There is pretty strong consensus that there was a blackout caused by a computer network attack," said iSight's director of cyberespionage analysis, John Hultquist.

Experts with ESET, iSight and Trend Micro told Reuters the attackers used a malicious software platform known as "BlackEnergy" to access utility networks, planting a related piece of malware, "KillDisk," on targeted systems.

KillDisk can delete or overwrite data files.

Researchers say they have yet to determine whether KillDisk's job was to knock out power or simply conceal the attack.

Cybercriminals have been using versions of BlackEnergy since 2007. Over the past two years, there has been widespread reports that a Moscow-backed group, Sandworm, was using it for targeted attacks.

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