An advanced malware piece of malware named Attor was used in cyberespionage operations on diplomats and high-profile Russian-speaking users in Eastern Europe. ESET researchers believe that the threat actor behind Attor a state-sponsored group involved in highly targeted attacks on selected targets. The malware makes sophisticated use of encryption to hide its components. It targets popular Russian apps and services, including the social networks Odnoklassniki, and VKontakt, VoIP provider Multifon, IM apps Qip and Infium, search engine Rambler, email clients Yandex and Mail.”]
Source: https://securityaffairs.co/wordpress/92346/malware/attor-malware-espionage.html