MALWARE FAMILY
Zumanek
Internal ID: win.zumanek
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to ESET, this malware family was active exclusively in Brazil until the middle of 2020. It s identified by its method for obfuscating strings. It creates a function for each character of the alphabet and then concatenates the result of calling the correct functions in sequence.
Threat Analysis
Zumanek 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.zumanek
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.