CeranaKeeper
CeranaKeeper is a China-attributed nation-state APT group with an espionage motive, tracked by Brandefense. It targets the Government sector in 5 countries, including Japan and Taiwan.
- Origin
- China
- Techniques
- 0
- Exploited CVEs
- No CVE data
- First seen
- Jan 1, 2022
- Record updated
Who They Target.
About CeranaKeeper.
CeranaKeeper is a China-aligned APT that has been active since at least early 2022, primarily targeting governmental institutions in Asian countries. The group employs custom backdoors like TONESHELL and OneDoor, leveraging cloud services such as Dropbox and OneDrive for data exfiltration. CeranaKeeper utilizes techniques like side-loading, brute-force attacks, and the deployment of BAT scripts to extend its reach within compromised networks. Their operations are characterized by a relentless pursuit of sensitive data, adapting their toolset and methods to evade detection.
Last updated Sep 11, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.