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.