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North Korean hackers use blockchain to hide malware in smart contracts, evading detection and targeting developers via fake job posts.
North Korean-linked hackers, including group UNC5342, are using blockchain technology to secretly host and distribute malware via smart contracts on Ethereum and BNB Smart Chain, a method known as EtherHiding.
By embedding malicious code in decentralized, immutable contracts, attackers evade takedowns and deliver malware through fake job postings targeting developers.
The technique, which allows remote updates and leaves no logs, enables persistent access and has been linked to malware like JadeSnow and InvisibleFerret.
Google and Cisco researchers observed coordinated campaigns using this approach, highlighting a growing trend of nation-state actors leveraging emerging tech for stealthy, resilient cyberattacks.
Los hackers norcoreanos usan blockchain para ocultar malware en contratos inteligentes, evadir la detección y atacar a los desarrolladores a través de anuncios de trabajo falsos.