North Korea’s ‘Moonstone Sleet’ using fake tank game, custom ransomware in attacks

The hacking group is targeting software companies and defense firms with custom ransomware variants and elaborate scams.

Moonstone Sleet emerges as new North Korean threat actor with new bag of tricks | Microsoft Security Blog

Microsoft has identified a new North Korean threat actor, now tracked as Moonstone Sleet (formerly Storm-1789), that combines many tried-and-true techniques used by other North Korean threat actors, as well as unique attack methodologies to target companies for its financial and cyberespionage objectives.

Microsoft Security Blog