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DragonBreath: Dragon in the Kernel

By Ransom-ISAC

Excerpt

Dragoncore_k.sys & Zhengzhou 403 Network Technology Co., Ltd.

0-Day BYOVD Vulnerability | Shell Company Analysis | Dragon Breath APT-Q-27 | APT31 Personnel Nexus Field Value

Report Date April 22, 2026

Authors Alex Necula, Ellis Stannard

TLP Classification TLP:WHITE — Unrestricted Distribution

Subject Driver dragoncore_k.sys

Vulnerability Class 0-Day / BYOVD — PPL Bypass / EDR Ne…

The opening of the report, shown for reference. The full report, with its figures and indicators, is published by ransom-isac.com on ransom-isac.com.

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