osiris
Known ransomware group ACTIVEOsiris is a ransomware-as-a-service operation first observed in November 2025 that uses a Bring Your Own Vulnerable Driver (BYOVD) technique to disable endpoint detection tools before deploying hybrid ECC + AES-128-CTR encryption; Symantec researchers linked its operators to former INC ransomware affiliates.
2
Total Claims
1
Critical
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Records Claimed
2
Industries Hit
Active span: Oct 27, 2026 – Nov 6, 2026 · 2 organizations targeted
Actor Threat Profile
Activity Timeline
Peak: Oct 2026 (1)Top Targeted Industries
Tradecraft & Infrastructure
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Documented tools
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MITRE tactics / techniques
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Known leak sites