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According to Group-IB, the ransomware spreads through local networks just like the WannaCry virus did.More news: Bucks' Brogdon NBA All-Rookie team
Hackers have targeted Russian oil giant Rosneft, the company said on Tuesday, just as Deloitte released a report on cyber-attacks targeting us oil companies.
The cyberattack targeted a number of oil, telecommunications and financial companies in Russian Federation and Ukraine, blocking computers and demanding 300 USA dollars in bitcoins, Group-IB told Russia's Prime news agency.
As a result it could miss out on about 15 billion roubles in dividends from subsidiaries this year, potentially limiting its scope for acquisitions, according to analyst estimates.More news: Supreme Court travel ban ruling: What it means
"Neither the production process, nor mining and preparation of oil were stopped", the company said on Twitter.
Russian metals giant Evraz said its IT systems had been affected too, Russia's RIA news agency reported. "In connection with the irregular situation, some flight delays are possible", Dykhne said in a post on Facebook.
"Whether hackers use spyware targeting bidding data of fields, malware infecting production control systems, or denial of service that blocks the flow of information through control systems, they are becoming increasingly sophisticated and, specifically alarming, launching coordinated attacks on the industry", the report said.More news: White House paints Handel win as Trump triumph