APT / THREAT GROUP

STEELCORGI

aliases

Last seen:Mar 17, 2026

Intelligence Profile

According to FireEye, STEELCORGI is a packer for Linux ELF files that makes use of execution guardrails by sourcing decryption key material from environment variables.

Threat Analysis

STEELCORGI 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://www.fireeye.com/blog/threat-research/2020/11/live-off-the-land-an-overview-of-unc1945.html

→https://www.mandiant.com/resources/unc2891-overview

→https://yoroi.company/research/opening-steelcorgi-a-sophisticated-apt-swiss-army-knife/

→https://yoroi.company/research/shadows-from-the-past-threaten-italian-enterprises/

Quick Facts

TypeAPT / Threat Group

Aliases2

Also Known As

elf.steelcorgiSTEELCORGI

External Intelligence

Malpedia: elf.steelcorgi

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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