Intrusion setG1033

Star Blizzard

Also tracked as SEABORGIUM, Callisto Group, TA446, COLDRIVER

Star Blizzard is a cyber espionage and influence group originating in Russia that has been active since at least 2019. Star Blizzard campaigns align closely with Russian state interests and have included persistent phishing and credential theft against academic, defense, government, NGO, and think tank organizations in NATO countries, particularly the US and the UK.

Documented techniques
20
Assessed origin
Russia
Assessed motivation
Espionage
First seen
2019
Basis
MITRE ATT&CK

How they break in

Techniques MITRE has documented this group using, grouped by the stage of an attack they belong to. This is the actionable half: each one is a behaviour you can look for in your own logs, and a control you can test.

Malware

Families MITRE records this group deploying. Detection names for these are a reasonable place to start.

Spica
Source: MITRE ATT&CK View the original record · Last synchronised 2026-09-09 · Origin and motivation are read from MITRE’s own description and are not structured fields in ATT&CK. Where the text does not attribute a group, this page leaves them blank rather than guessing.