GreyEnergy: A successor to BlackEnergy

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ESET researchers have discovered and analyzed advanced malware, previously undocumented, that has been used in targeted attacks against critical infrastructure organizations in Central and Eastern Europe. The malware, named GreyEnergy by ESET researchers, exhibits many conceptual similarities with BlackEnergy, the malware used in attacks against the Ukrainian energy industry in December 2015. Besides these similarities, there are links that suggest that the group behind GreyEnergy has been working together with the TeleBots group, known in connection with many destructive attacks.This report reveals the activities of the GreyEnergy group over the past few years.