According to MANA, The SBU, Ukraine's state security service, said the attack, which started in Ukraine and spread around the world on Tuesday, was by the same hackers who attacked the Ukrainian power grid in December 2016. Ukrainian politicians were quick to blame Russia for Tuesday's attack, but a Kremlin spokesman dismissed "unfounded blanket accusations".
"The available data, including those obtained in cooperation with international antivirus companies, give us reason to believe that the same hacking groups are involved in the attacks, which in December 2016 attacked the financial system, transport and energy facilities of Ukraine using TeleBots and BlackEnergy," the SBU said.
"The main purpose of the virus was the destruction of important data, disrupting the work of public and private institutions in Ukraine and spreading panic among the people."
A cyber attack in December on a Ukrainian state energy computer caused a power cut in the northern part of the capital Kiev.
The Russian foreign ministry and Federal Security Service did not immediately respond to requests for comment on the latest allegations.