# Callisto: threat group profile

> Callisto is a threat group thought to operate from Russia. Public reporting about it is still limited. This free profile brings together what is known about it, so you can judge the risk to you. It lists the other names the group goes by and links to every public report behind it.

Canonical page: https://www.edgeprotect.io/threat-actors/callisto
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## At a glance

| Fact | Value |
|---|---|
| Attack techniques | 0 |
| Thought to operate from | Russia |
| Other names | 10 |
| Public reports | 28 |

## Who is Callisto?

Callisto is a threat group thought to operate from Russia. Public reporting about it is still limited.

### Also known as

COLDRIVER, SEABORGIUM, TA446, GOSSAMER BEAR, BlueCharlie, Star Blizzard, TAG-53, IRON FRONTIER, UNC4057, Blue Callisto

Security companies each give the same group their own name, so one group can have many.

### What public reporting says

> The Callisto Group is an advanced threat actor whose known targets include military personnel, government officials, think tanks, and journalists in Europe and the South Caucasus. Their primary interest appears to be gathering intelligence related to foreign and security policy in the Eastern Europe and South Caucasus regions.

## Public reports about Callisto

- https://web.archive.org/web/20170417102235/https://www.f-secure.com/documents/996508/1030745/callisto-group
- https://blog.google/threat-analysis-group/tracking-cyber-activity-eastern-europe
- https://blog.google/threat-analysis-group/update-on-cyber-activity-in-eastern-europe
- https://blog.google/threat-analysis-group/continued-cyber-activity-in-eastern-europe-observed-by-tag
- https://www.microsoft.com/security/blog/2022/08/15/disrupting-seaborgiums-ongoing-phishing-operations
- https://blog.sekoia.io/calisto-continues-its-credential-harvesting-campaign
- https://services.google.com/fh/files/blogs/google_fog_of_war_research_report.pdf
- https://www.recordedfuture.com/research/bluecharlie-previously-tracked-as-tag-53-continues-to-deploy-new-infrastructure-in-2023
- https://www.microsoft.com/en-us/security/blog/2023/12/07/star-blizzard-increases-sophistication-and-evasion-in-ongoing-attacks/
- https://go.recordedfuture.com/hubfs/reports/cta-2022-1205.pdf
- https://www.pwc.com/gx/en/issues/cybersecurity/cyber-threat-intelligence/blue-callisto-orbits-around-us.html
- https://www.ncsc.gov.uk/files/Advisory-Russian-FSB-cyber-actor-star-blizzard-continues-worldwide-spear-sphishing-campaigns.pdf
- https://cloud.google.com/blog/topics/threat-intelligence/cyber-threats-global-elections
- https://cloud.google.com/blog/topics/threat-intelligence/cyber-threats-2024-paris-olympics
- https://blog.google/threat-analysis-group/google-tag-coldriver-russian-phishing-malware
- https://citizenlab.ca/2024/08/sophisticated-phishing-targets-russias-perceived-enemies-around-the-globe/
- https://www.gov.uk/government/news/uk-exposes-attempted-russian-cyber-interference-in-politics-and-democratic-processes
- https://www.pwc.com/gx/en/issues/cybersecurity/cyber-threat-intelligence/coldwastrel-space.html
- https://citizenlab.ca/2024/10/disrupting-coldriver/
- https://blogs.microsoft.com/on-the-issues/2024/10/03/protecting-democratic-institutions-from-cyber-threats/
- https://www.justice.gov/opa/pr/justice-department-disrupts-russian-intelligence-spear-phishing-efforts
- https://www.justice.gov/opa/pr/two-russian-nationals-working-russias-federal-security-service-charged-global-computer
- https://www.justice.gov/opa/media/1327601/dl?inline
- https://www.noticeofpleadings.com/starblizzard/
- https://edeca.net/post/2024-06-26-an-interesting-callisto-yara-rule
- https://blog.sekoia.io/calisto-show-interests-into-entities-involved-in-ukraine-war-support
- https://blog.sekoia.io/one-year-after-the-cyber-implications-of-the-russo-ukrainian-war/
- https://blog.sekoia.io/calisto-doxxing-sekoia-io-findings-concurs-to-reuters-investigation-on-fsb-related-andrey-korinets/

## Frequently asked questions

### Who is Callisto?

Callisto is a threat group thought to operate from Russia. Public reporting about it is still limited.

### Where is Callisto thought to be based?

Public reporting places Callisto as operating from Russia. Attribution is never certain: it rests on the tools, infrastructure and targets researchers have seen.

### How do I know if Callisto is a risk to my business?

Create an account and tell us the software you run. We match it against known flaws, including those linked to threat groups, rank each one from 0 to 100 and tell you as soon as we spot something that affects you.

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