Medusa Group

Medusa Group has been active since at least 2021 and was initially operated as a closed ransomware group before evolving into a Ransomware-as-a-Service (RaaS) operation. Some reporting indicates that certain attacks may still be conducted directly by the ransomware’s core developers. Public sources have also referred to the group as “Spearwing” or “Medusa Actors.” ^{1 2} Medusa Group employs living-off-the-land techniques, frequently leveraging publicly available tools and common remote management software to conduct operations. The group engages in double extortion tactics, exfiltrating data prior to encryption and threatening to publish stolen information if ransom demands are not met. ³ For initial access, Medusa Group has exploited publicly known vulnerabilities, conducted phishing campaigns, and used credentials or access purchased from Initial Access Brokers (IABs). The group is opportunistic and has targeted a wide range of sectors globally. ⁴

1. CISA Medusa Group Medusa Ransomware March 2025
2. Broadcom Medusa Ransomware Medusa Group March 2025
3. Security Scorecard Medusa Ransomware January 2024
4. Intel471 Medusa Ransomware May 2025

断言与引用

每条断言来自写入方；provenance 是写入方声称，不是本目录的复核结论。有效期按引用年份读取。

技术使用

别名

Medusa Group

读取与复核

记录自动入库·未人工复核。置信度是写入方给出的 0–100 值，置信带按 ≥80 / 50–79 / <50 划为高 / 中 / 低；四条信任轴（合成、生命周期、置信带、佐证源数）分开呈现，不合并为单一信任分。

纠错