- Published
- Source
- Help Net Security
- Reported by
- 2 publishers
- Filed under
- Malware & exploits
An unknown number of AOMEI Backupper users had their computers infected with a backdoor through an unusually stealthy supply chain attack, security researchers discovered. Between April and July 2026, attackers repeatedly altered configuration files on AOMEI’s own servers for just five to ten minutes at a time, then restored the originals. The tampered files belong to the software’s update and promotional pop-up mechanism, which periodically fetches instructions from AOMEI’s servers. The activity was observed on … More →…
Keeping malware out
- Keep operating systems, browsers and plugins patched – most malware arrives through known holes.
- Block macros and scripts from the internet, and let only approved software run where you can.
- Watch endpoint alerts for new persistence: scheduled tasks, services and run keys.
More helpNCSC: mitigating malware and ransomware attacks (opens in a new tab)
Also reported by 1 more publisher
Defender’s notebook
The attacker technique behind this story, in MITRE’s terms – and what to check in your own estate.
Supply Chain Compromise
Initial AccessWhat a defender checks
- Find where the affected package, update or vendor is used in your estate.
- Pin and verify dependencies, and keep a software bill of materials.
- Review what access the vendor's software has.
Build the skillBlue Team Engineer · Risk Assessment & Recommendations Reporting
© 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.
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