Microsoft says dozens of computer systems at an unspecified number of Ukrainian government agencies have been infected with destructive malware disguised as ransomware.
Separately, a top private sector cybersecurity executive in Kyiv told The Associated Press how the attack succeeded: The intruders penetrated the government networks through a shared software supplier in a so-called supply-chain attack in the fashion of the 2000 SolarWinds Russian cyberespionage campaign targeting the U.S. government.that the affected systems “span multiple government, non-profit, and information technology organizations.
Microsoft said it was not yet able to assess the intent of the destructive activity or associate the attack with any known threat actors. The Ukrainian security official, Serhiy Demedyuk, Demedyuk told Reuters in written comments that the defacement “was just a cover for more destructive actions that were taking place behind the scenes and the consequences of which we will feel in the near future.” The story did not elaborate and Demedyuk could not immediately be reached for comment.
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