MALWARE FAMILY

Nimbo-C2

Internal ID: elf.nimbo_c2

aliases

Last seen:Mar 17, 2026

Intelligence Profile

According to the author, Nimbo-C2 is yet another (simple and lightweight) C2 framework. The agent currently supports Windows x64 and Linux. It's written in Nim, with some usage of .NET (by dynamically loading the CLR to the process).

Threat Analysis

Nimbo-C2 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

→https://github.com/itaymigdal/Nimbo-C2

→https://www.sentinelone.com/labs/follow-the-smoke-china-nexus-threat-actors-hammer-at-the-doors-of-top-tier-targets/

Quick Facts

TypeMalware Family

Aliases1

Also Known As

elf.nimbo_c2

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.

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