[Attor](https://attack.mitre.org/software/S0438) is a Windows-based espionage platform that has been seen in use since 2013. [Attor](https://attack.mitre.org/software/S0438) has a loadable plugin architecture to customize functionality for specific targets.(Citation: ESET Attor Oct 2019)
Platforms: Windows
MITRE ATT&CK® is a registered trademark of The MITRE Corporation. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.