Kaspersky Labs says Duqu 2.0 is a new class of malware unlike anything the company has seen before. The malware was a revamped version of Duqu first seen in 2011. The company is currently processing backup logs and other data to confirm the source of the attack’s source. It isn’t clear how the attackers were able to infiltrate the network, but the running theory is that an employee in a small APAC office was targeted by a Phishing campaign. The attackers used up to three zero-day exploits, which is very impressive.”]
Source: https://www.csoonline.com/article/2933489/kaspersky-compromise-points-to-nation-state-actors.html