Overview
The Green Blood Group is an emerging ransomware operation first identified in early 2026 whose Go-based Windows payload uses ChaCha8 encryption and aggressively destroys backup and recovery options, targeting organizations in India, Senegal, Egypt, Colombia, and Belgium.
- First tracked: 2026-01-29
- Discussed in our reports: Egypt
Geography: origin and targets
No public attribution of origin. Lines are drawn only where public reporting places the operators; flags show where the group has claimed victims, sized by number of claims.
No victim-country data for this group yet.
Exploited vulnerabilities
None recorded in the sources we reviewed.
ATT&CK techniques
None recorded in the sources we reviewed.
Tools
None recorded in the sources we reviewed.
Leak-site infrastructure
| Title | Type | Address (defanged) | Seen online at snapshot |
|---|---|---|---|
| — | DLS | scbrksw5fgjtujc2ah42roo6bij2unr2tggfcynpbql5a7yp3s22taid[.]onion | No |
Sources and caveats
Group descriptions, ATT&CK mappings, tools and leak-site locations come from public ransomware tracking projects, including ransomware.live and Crocodyli. Exploited vulnerabilities come from the Ransomware-Vulnerability-Matrix by BushidoUK (licensed CC BY 4.0), supplemented where a group profile there is newer than the data we hold. Each CVE links to its original research source. Technical text is shown in English as published. Leak-site addresses are defanged and shown for blocking and detection; do not visit them. Nothing here is verified by ClairSec_ against a specific incident.
Data snapshot: 2026-10-17