MALWARE FAMILY
FK_Undead
Internal ID: win.fk_undead
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
This malware family is mainly spread through various private server clients in bundles, and mainly tamper with user system network data packets through technical means such as TDI filtering, DNS hijacking, HTTP(s) injection, and HOSTS redirection, hijacking normal web page access to designated private server websites, and using security software cloud detection and killing data packet shielding, shutdown callback rewriting and other means to achieve counter-detection.
Threat Analysis
FK_Undead 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.fk_undead
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.