Back Cybersecuritynews

North Korean APT37 Hackers Leverages Novel Malware to Infect Air‑Gapped Systems

Cybersecuritynews •Tushar Subhra Dutta • February 27, 2026

North Korea-linked threat group APT37 has launched a sophisticated new campaign using a fresh set of custom malware tools specifically designed to reach computers that are not connected to the internet — a type of system long considered among the most secure in the world. The campaign, dubbed Ruby Jumper, marks a sharp escalation in the […]

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

APT37 Hackers Deploy Custom Malware Against Air-Gapped Systems North Korean threat group APT37 has initiated a campaign named Ruby Jumper, utilizing new custom malware to target air-gapped systems, which are typically isolated from the internet. This marks a significant advancement in their cyber capabilities, as air-gapped systems are considered highly secure. The operation aims to breach these systems, potentially impacting sensitive data and infrastructure. 10 sources 70

Extracted Entities

North Korean APT37 Hackers Leverages Novel Malware to Infect Air‑Gapped Systems

The full story

Extracted Entities

APT Groups (1)

Attack Types (1)

Campaigns (1)

Countries (1)