MALWARE FAMILY
OutSteel
Internal ID: win.outsteel
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to MITRE, OutSteel is a file uploader and document stealer developed with the scripting language AutoIT that has been used by Ember Bear since at least March 2021.
Threat Analysis
OutSteel 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
Quick Facts
TypeMalware Family
Aliases1
Also Known As
win.outsteel
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.