MEDIUMApt
Global

North Korean hackers targeted ethnic Koreans in China with Android ‘BirdCall’ malware

·Source: The Record

Updated:

Executive Summary

Researchers at cybersecurity firm ESET attributed the campaign to APT37 and said the hackers used a backdoor attached to a suite of card games from a company called Sqgame.

Analysis

Researchers at cybersecurity firm ESET attributed the campaign to APT37 and said the hackers used a backdoor attached to a suite of card games from a company called Sqgame.
Source Attribution

Originally published by The Record on May 7, 2026.

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