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2026 AOMEI Backupper — supply chain attack; malware injected into update servers

2026 Unknown records affected Share on X

Data compromised

Windows credentials (NetNTLMv2 tokens harvested), system access, potential full compromise via C2 backdoor. Affected: IT services, telecom, education sectors across 11 countries.

Technical writeup

Attackers modified AOMEI update servers April-July 2026, injecting CROSSROAD (downloader), SHINYROAD (backdoor), and Adaptix C2 malware. Malware harvested NetNTLMv2 tokens via WebDAV popup. Affected 162+ confirmed tenants across IT, telecom, education. AOMEI acknowledged July 29; malware persisted despite patches. Verified by Google/Mandiant.

Root cause

Compromised update servers; unsigned configuration files modified by attackers; automatic updates deployed CROSSROAD, SHINYROAD, Adaptix C2 malware.

References