New Stealthy Fileless Linux Malware ‘ShadowHS’ Emphasizes Automated Propagation

Cybersecuritynews •Tushar Subhra Dutta • February 2, 2026

Security teams defending Linux environments now face a sophisticated threat designed to evade traditional detection. A newly uncovered fileless malware framework named ShadowHS operates entirely in memory, leaving no persistent traces on disk while establishing long-term control over compromised systems. Unlike conventional Linux threats that focus on quick monetization through cryptomining or ransomware deployment, this […]

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ShadowHS Malware Framework Targets Linux Systems with Fileless Techniques The ShadowHS malware framework has been identified as a significant threat to Linux environments, utilizing a fileless architecture for stealthy operations. Discovered by Cyble Research & Intelligence Labs on January 30, 2026, ShadowHS employs a multi-stage encrypted loader for in-memory execution, enabling attackers to perform credential theft, privilege escalation, and data exfiltration without leaving persistent files on the system. 4 sources 31

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New Stealthy Fileless Linux Malware ‘ShadowHS’ Emphasizes Automated Propagation

The full story

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