# Poseidon Group: threat group profile

> Poseidon Group is a threat group thought to operate from Brazil. Public reporting links it to 7 attack techniques. This free profile shows how it works, stage by stage, 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.

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## At a glance

| Fact | Value |
|---|---|
| Attack techniques | 7 (plus 4 sub-techniques) |
| Thought to operate from | Brazil |
| Other names | 1 |
| Public reports | 3 |

## Who is Poseidon Group?

Poseidon Group is a threat group thought to operate from Brazil. Public reporting links it to 7 attack techniques.

### Also known as

G0033

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

### What public reporting says

> Poseidon Group is a Portuguese-speaking threat group that has been active since at least 2005. The group has a history of using information exfiltrated from victims to blackmail victim companies into contracting the Poseidon Group as a security firm.

## How does Poseidon Group attack? Stage by stage

Each technique is a known way attackers research, get in, stay hidden or do damage. Here are the 7 linked to Poseidon Group. Some techniques belong to more than one stage. Public reporting also lists 4 more specific variations of them, called sub-techniques.

### 1. Research (0)

- None linked in public reporting.

### 2. Preparation (0)

- None linked in public reporting.

### 3. Getting in (0)

- None linked in public reporting.

### 4. Running code (1)

- T1059: Command and Scripting Interpreter

### 5. Staying in (0)

- None linked in public reporting.

### 6. Taking control (0)

- None linked in public reporting.

### 7. Hiding (1)

- T1036: Masquerading

### 8. Disabling defences (0)

- None linked in public reporting.

### 9. Stealing passwords (1)

- T1003: OS Credential Dumping

### 10. Looking around (4)

- T1007: System Service Discovery
- T1049: System Network Connections Discovery
- T1057: Process Discovery
- T1087: Account Discovery

### 11. Spreading (0)

- None linked in public reporting.

### 12. Gathering data (0)

- None linked in public reporting.

### 13. Keeping contact (0)

- None linked in public reporting.

### 14. Taking data out (0)

- None linked in public reporting.

### 15. Causing damage (0)

- None linked in public reporting.

## Public reports about Poseidon Group

- https://securelist.com/poseidon-group-a-targeted-attack-boutique-specializing-in-global-cyber-espionage/73673/
- https://attack.mitre.org/wiki/Groups
- https://attack.mitre.org/groups/G0033/

## Frequently asked questions

### Who is Poseidon Group?

Poseidon Group is a threat group thought to operate from Brazil. Public reporting links it to 7 attack techniques.

### Where is Poseidon Group thought to be based?

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

### How does Poseidon Group attack?

Public reporting links Poseidon Group to 7 attack techniques. Most of them are about looking around, running code and hiding.

### How do I know if Poseidon Group 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.

## Check whether it matters to your business

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