DragonBreath: Dragon in the Kernel
A 0-day BYOVD vulnerability in dragoncore_k.sys signed by Zhengzhou 403 Network Technology, with shell company analysis, Dragon Breath APT-Q-27 attribution, and an APT31 / Wuhan Xiaoruizhi personnel nexus.
Alex Necula & Ellis Stannard
April 22, 2026
+3 contributors