ShadowHS Fileless Malware Targets Linux Systems With Automated Spread

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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