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CVE-2020-36603

Published: Sep 14, 2022

Modified: Jun 4, 2025

PUBLISHED

Description

The HoYoVerse (formerly miHoYo) Genshin Impact mhyprot2.sys 1.0.0.0 anti-cheat driver does not adequately restrict unprivileged function calls, allowing local, unprivileged users to execute arbitrary code with SYSTEM privileges on Microsoft Windows systems. The mhyprot2.sys driver must first be installed by a user with administrative privileges.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://github.com/kkent030315/evil-mhyprot-cli

x_refsource_MISC

https://www.trendmicro.com/en_us/research/22/h/ransomware-actor-abuses-genshin-impact-anti-cheat-driver-to-kill-antivirus.html

x_refsource_MISC

https://www.vice.com/en/article/y3p35w/hackers-are-using-anti-cheat-in-genshin-impact-to-ransom-victims

x_refsource_MISC

https://github.com/kagurazakasanae/Mhyprot2DrvControl

x_refsource_MISC

https://web.archive.org/web/20211204031301/https://www.godeye.club/2021/05/20/001-disclosure-mhyprot.html

x_refsource_MISC

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