{"description": "Enterprise techniques used by Medusa Ransomware, ATT&CK software S1244 (v1.0)", "name": "Medusa Ransomware (S1244)", "domain": "enterprise-attack", "versions": {"layer": "4.5", "attack": "19", "navigator": "5.3.2"}, "techniques": [{"techniqueID": "T1059", "showSubtechniques": true}, {"techniqueID": "T1059.001", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has launched PowerShell scripts for execution and defense evasion.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1059.003", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has used `cmd.exe` to execute command on an infected host.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1543", "showSubtechniques": true}, {"techniqueID": "T1543.003", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has created a new PowerShell process using the `CreateProcessA` API.(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1486", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has encrypted files using AES-256 encryption, which then appends the file extension \u201c.medusa\u201d to encrypted files and leaves a ransomware note named \u201c!READ_ME_MEDUSA!!!.txt.\u201d(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: CISA Medusa Group Medusa Ransomware March 2025)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1140", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has decoded XOR encrypted strings prior to execution in memory.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1685", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has terminated antivirus services utilizing the gaze.exe executable.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024) [Medusa Ransomware](https://attack.mitre.org/software/S1244) has also terminated antivirus services utilizing PowerShell scripts.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1083", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has searched for files within the victim environment for encryption and exfiltration.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: CISA Medusa Group Medusa Ransomware March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)  [Medusa Ransomware](https://attack.mitre.org/software/S1244) has also identified files associated with remote management services.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: CISA Medusa Group Medusa Ransomware March 2025)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1564", "showSubtechniques": true}, {"techniqueID": "T1564.003", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has utilized the `ShowWindow` function to hide current window.(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1070", "showSubtechniques": true}, {"techniqueID": "T1070.004", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has the ability to delete itself after execution.(Citation: Broadcom Medusa Ransomware Medusa Group March 2025) [Medusa Ransomware](https://attack.mitre.org/software/S1244) also has the ability to delete itself after execution through the command `cmd /c ping localhost -n 3 > nul & del`.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1490", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has deleted recovery files such as shadow copies using `vssadmin.exe`.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: CISA Medusa Group Medusa Ransomware March 2025)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1559", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has leveraged the `CreatePipe` API to enable inter-process communication.(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1680", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has enumerated logical drives on infected hosts.(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1106", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has leveraged Windows Native API functions to execute payloads.(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1135", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has identified networked drives.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1027", "showSubtechniques": true}, {"techniqueID": "T1027.013", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has utilized XOR encrypted strings.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1057", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has utilized an encoded list of the processes that it detects and terminates.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1679", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has avoided specified files, file extensions and folders to ensure successful execution of the payload and continued operations of the impacted device.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1489", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has the capability to terminate services related to backups, security, databases, communication, filesharing and websites.(Citation: CISA Medusa Group Medusa Ransomware March 2025)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024) [Medusa Ransomware](https://attack.mitre.org/software/S1244) has also utilized the `taskkill /F /IM  /T` command to stop targeted processes and `net stop ` command to stop designated services.(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1518", "showSubtechniques": true}, {"techniqueID": "T1518.001", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has the capability to detect security solutions for termination or deletion within the victim device using hard-coded lists of strings containing security product executables.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1082", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has collected data from the SMBIOS firmware table using `GetSystemFirmwareTable`.(Citation: Security Scorecard Medusa Ransomware January 2024)  ", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1007", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has leveraged an encoded list of services that it designates for termination.(Citation: Palo Alto Unit 42 Medusa Group Medusa Ransomware January 2024)(Citation: Broadcom Medusa Ransomware Medusa Group March 2025)(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1124", "comment": "[Medusa Ransomware](https://attack.mitre.org/software/S1244) has discovered device uptime through `GetTickCount()`.(Citation: Security Scorecard Medusa Ransomware January 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}], "gradient": {"colors": ["#ffffff", "#66b1ff"], "minValue": 0, "maxValue": 1}, "legendItems": [{"label": "used by Medusa Ransomware", "color": "#66b1ff"}]}