APT / THREAT GROUP

BlueShell

aliases

Last seen:Mar 17, 2026

Intelligence Profile

According to AhnLab, BlueShell is a backdoor malware developed in Go language, published on Github, and it supports Windows, Linux, and Mac operating systems. Currently, the original Github repository is presumed to have been deleted, but the BlueShell source code can still be obtained from other repositories. It features an explanatory ReadMe file in Chinese, indicating the possibility that the creator is a Chinese user.

Threat Analysis

BlueShell is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.

External References

→https://asec.ahnlab.com/en/47455/

→https://asec.ahnlab.com/en/56941/

→https://asec.ahnlab.com/ko/56715/

→https://hunt.io/blog/blueshell-four-years-on-still-a-formidable-threat

Quick Facts

TypeAPT / Threat Group

Aliases2

Also Known As

win.blueshellBlueShell

External Intelligence

Malpedia: win.blueshell

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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