Rhysida
activeAlso known as: Rhysida Ransomware
Rhysida is a ransomware group that emerged in May 2023 and has quickly become a significant threat, particularly to the healthcare and education sectors. They operate a leak site and use double extortion tactics.
First Seen
2023-05
Last Activity
2025-01
Target Regions
4 regions
Industries
5 sectors
HealthcareEducationGovernmentManufacturingIT
Attack Chain (MITRE ATT&CK)
Visual representation of the attack phases and techniques used by Rhysida
Click on a phase to view details and MITRE ATT&CK technique IDs
Tactics & Techniques
MITRE ATT&CK mapped tactics and techniques used by this threat actor
Indicators of Compromise (IOCs)
Known IOCs associated with Rhysida operations
| Type | Value | Description | Last Seen | Actions |
|---|---|---|---|---|
| hash | a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7b8 | Rhysida ransomware loader | 2025-01-12 | |
| filename | CriticalBreachDetected.pdf | Ransom note PDF | — |
IOCs are defanged for safety. Click copy to get the clean value.
Detection Guidance
SIEM and EDR detection recommendations for identifying Rhysida activity
- 1Monitor for unusual RDP connections
- 2Detect PsExec execution across network
- 3Alert on mass file encryption
- 4Monitor for PDF ransom notes
Mitigation, Containment & Recovery
Step-by-step guidance for responding to and recovering from this ransomware attack
- 1Disable exposed RDP
- 2Implement VPN MFA
- 3Block known Rhysida IOCs