You may recall "APT28", the Russian hacking group which was tied to last year's interference in the presidential election. It has long been known for its advanced range of tools for penetrating Windows, iOS, Android, and Linux devices. Now, researchers have uncovered an equally sophisticated malware package the group used to compromise Macs. From a report on ComputerWorld: The group -- known in the security industry under different names including Fancy Bear, Pawn Storm, and APT28 -- has been operating for almost a decade. It is believed to be the sole user and likely developer of a Trojan program called Sofacy or X-Agent. X-Agent variants for Windows, Linux, Android, and iOS have been found in the wild in the past, but researchers from Bitdefender have now come across what appears to be the first macOS version of the Trojan. It's not entirely clear how the malware is being distributed because the Bitdefender researchers obtained only the malware sample, not the full attack chain. However, it's possible a macOS malware downloader dubbed Komplex, found in September, might be involved. Komplex infected Macs by exploiting a known vulnerability in the MacKeeper antivirus software, according to researchers from Palo Alto Networks who investigated the malware at the time. The vulnerability allowed attackers to execute remote commands on a Mac when users visited specially crafted web pages.Further reading on ArsTechnica.