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US Government Warns of Hidden Cobra North Korea Cyber Threat

ID: 0ec346db-6fd4-5450-9853-273c00cbf26a

STIX ID: report--0ec346db-6fd4-5450-9853-273c00cbf26a

Feed Name: Security Ledger

Threat Score
85/100

Date Published: 2017-11-15

Date Updated: 2026-04-26

Author: Paul Roberts

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The DHS and FBI issued a joint Technical Alert warning of the North Korean 'Hidden Cobra' campaign using the FallChill RAT to target aerospace, telecommunications, and finance sectors; FallChill provides remote access via multi-proxy C2 channels, has been observed since 2016, and is associated with substantial operational infrastructure (83 nodes) and potential for espionage or disruptive operations.

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