Poseidon Group
MITRE ATT&CK: G0033 View on attack.mitre.org
Aliases: Poseidon Group
- First seen
- 2005-01-01 00:00:00
- Origin
- BR
- Primary motivation
- financial-gain
- Sophistication
- intermediate
- Resource level
- organization
- Actor type
- criminal
- Profile updated
- 2026-07-07 12:31:22
Targeted industries: financial-services professional-services technology-and-telecommunications
Targeted regions: country_code:br country_code:us
Context
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.
Detection coverage
- 279 Sigma rules
Malware & tools used
- System Network Connections Discovery (attack-pattern)
- OS Credential Dumping (attack-pattern)
- System Service Discovery (attack-pattern)
- Domain Account (attack-pattern)
- Local Account (attack-pattern)
- Process Discovery (attack-pattern)
- Match Legitimate Resource Name or Location (attack-pattern)
- PowerShell (attack-pattern)
Reports & references
- MITRE ATT&CK — Groups (report)
- Kaspersky — 73673 (report)
- MITRE ATT&CK — G0033 (report)