MITRE ATT&CK / Software / S9023

HiddenFace

ID
S9023
Type
Malware
Associated names
NOOPDOOR
Platforms
Windows
Source
attack.mitre.org
MITRE last modified
12 May 2026

HiddenFace is a modular backdoor developed and used exclusively by MirrorFace since at least 2021. HiddenFace can communicate both actively and passively and has been used against political and academic targets.[1][2][3]

Techniques used (25)

Groups using it (1)

References

  1. JPCERT MirrorFace JUL 2024
  2. Trend Micro Earth Kasha NOV 2024
  3. Trend Micro Earth Kasha Updates APR 2025