APT / THREAT GROUP
TERBIUM
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
Microsoft Threat Intelligence identified similarities between this recent attack and previous 2012 attacks against tens of thousands of computers belonging to organizations in the energy sector. Microsoft Threat Intelligence refers to the activity group behind these attacks as TERBIUM, following our internal practice of assigning rogue actors chemical element names.
Threat Analysis
TERBIUM is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.
External References
Quick Facts
TypeAPT / Threat Group
Aliases1
SourceMalpedia
Also Known As
TERBIUM
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.