Attackers Tampered with AOMEI Backupper's Update Servers for Minutes to Deliver a Backdoor

Attackers repeatedly changed the files that AOMEI Backupper fetches from the vendor's own update servers, in windows of five to ten minutes at a time between May and July 2026, so that any copy of the Windows backup program that checked for an update during one of those windows would download and run a backdoor.

Google Threat Intelligence Group, Mandiant, and ManageEngine's Threat Analysis

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id: 3644
uid: yo76a
insdate: 2026-10-16 18:10:09
title: Attackers Tampered with AOMEI Backupper's Update Servers for Minutes to Deliver a Backdoor
additional: Attackers repeatedly changed the files that AOMEI Backupper fetches from the vendor's own update servers, in windows of five to ten minutes at a time between May and July 2026, so that any copy of the Windows backup program that checked for an update during one of those windows would download and run a backdoor.

Google Threat Intelligence Group, Mandiant, and ManageEngine's Threat Analysis
category: Cybersecurity
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guid: https://thehackernews.com/2026/10/attackers-tampered-with-aomei.html
source_url: https://thehackernews.com/2026/10/attackers-tampered-with-aomei.html
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