MALWARE FAMILY

Epsilon Stealer

Internal ID: win.epsilon_stealer

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Epsilon Stealer is an information stealer sold as Malware as a Service by a new french actor called "Epsilon". This malware is distributed as a game, mainly on discord, but steals user credentials, crypto wallets, and stored cookies. It evades static detection by being packed with NSIS, which then launches a malicious Electron package.

Threat Analysis

Epsilon 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

→https://github.com/IWcommunityFR/Epsilon-Stealer

→https://web.archive.org/20240626101253/https://github.com/KekraLoader/Epsilon-Stealer/tree/b258f04b9caf1f00527a7190c7ed00ad17ce96b1

Quick Facts

TypeMalware Family

Aliases1

Also Known As

win.epsilon_stealer

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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