Description Summary
Qilin (also known as Agenda) is a Rust- and Go-based ransomware-as-a-service active since August 2022. Affiliates are offered configurable encryption modes and per-victim builds. Qilin gained notoriety in June 2024 for the attack on Synnovis, a UK pathology services provider, which severely disrupted NHS hospitals in London.
Threat Actor
Russian-speaking RaaS operators. Affiliate cut ~80–85%.
Technical Indicators
Encryption Extension
.<random> / .agenda / .Mortis
Encryption Algorithm
ChaCha20 + RSA-4096 (Rust); previously AES
Ransom Note Name
README-RECOVER-<id>.txt
Targeted Industries
Healthcare, Education, Manufacturing, Financial
First Seen
August 2022
Last Seen
Active — most active operation of 2025 (1,000+ victims)
Geographical Location
Global; high-profile UK healthcare impact
MITRE ATT&CK Matrix
| Tactic | TTP | Technique Name |
|---|---|---|
| Initial Access x 3 | T1566 | Phishing |
| T1190 | Exploit Public-Facing Application | |
| T1078 | Valid Accounts | |
| Execution x 1 | T1059 | Command and Scripting Interpreter |
| Execution Persistence x 1 | T1053 | Scheduled Task/Job |
| Defense Evasion x 2 | T1562.001 | Disable or Modify Tools |
| T1070.004 | File Deletion | |
| Discovery x 2 | T1083 | File and Directory Discovery |
| T1082 | System Information Discovery | |
| Lateral Movement x 2 | T1021.001 | Remote Services: RDP |
| T1021.002 | SMB/Windows Admin Shares | |
| Exfiltration x 2 | T1041 | Exfiltration Over C2 Channel |
| T1567.002 | Exfiltration to Cloud Storage | |
| Impact x 3 | T1486 | Data Encrypted for Impact |
| T1490 | Inhibit System Recovery | |
| T1489 | Service Stop |