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RansomwareUnknown

Brotherhood

Brotherhood is a ransomware group, tracked by Brandefense. It targets organisations in Germany and Australia.

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Techniques
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Exploited CVEs
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Who They Target.

Countries · 2

About Brotherhood.

Brotherhood is a ransomware group that emerged in late 2025, targeting organizations in the US, Canada, and Australia across manufacturing, communications, and construction sectors, operating a Tor-based double-extortion leak site.

Last updated Sep 29, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.