MALWARE FAMILY
Ryuk Stealer
Internal ID: win.ryuk_stealer
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
Information Stealer that searches for sensitive documents and uploads its results to an FTP server. Skips files with known Ryuk extensions.
Threat Analysis
Ryuk Stealer is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.
External References
Quick Facts
TypeMalware Family
Aliases1
Also Known As
win.ryuk_stealer
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.