APT / THREAT GROUP💰 FINANCIALHIGH

Chaos

76
victims
6
aliases
Last seen:Mar 17, 2026

Intelligence Profile

Multi-functional malware written in Go, targeting both Linux and Windows, evolved from elf.kaiji.

Threat Analysis

Chaos is a high-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of financial.

Financially motivated threat actors like Chaos prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.

With high sophistication, Chaos is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.

Ransomware Victims (76)

CTIWATCH tracks 76 organizations claimed as victims by Chaos on its data leak site, with attack dates, sectors and countries.

View full victims list →

Intelligence Reports Mentioning Chaos

External References

Quick Facts

TypeAPT / Threat Group
Motivation💰 financial
Sophisticationhigh
Aliases6

Also Known As

RyukJokeChaosFakeRyukwin.chaosYashmaelf.chaos

External Intelligence

Malpedia: win.chaos

Research Links

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