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FSB Group Gamaredon Hides Worm in Windows Data Streams

Monday, June 1, 2026 at 11:00 AM UTC·Source: Infosecurity Magazine

Updated: Monday, June 1, 2026 at 11:00 AM UTC

Executive Summary

FSB-linked Gamaredon concealed a fileless worm in NTFS data streams to spy on Ukraine targets

Analysis

FSB-linked Gamaredon concealed a fileless worm in NTFS data streams to spy on Ukraine targets
Source Attribution

Originally published by Infosecurity Magazine on Jun 1, 2026.

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