{"description": "Enterprise techniques used by Umbreon, ATT&CK software S0221 (v1.1)", "name": "Umbreon (S0221)", "domain": "enterprise-attack", "versions": {"layer": "4.5", "attack": "19", "navigator": "5.3.2"}, "techniques": [{"techniqueID": "T1059", "showSubtechniques": true}, {"techniqueID": "T1059.003", "comment": "[Umbreon](https://attack.mitre.org/software/S0221) provides access using both standard facilities like SSH and additional access using its backdoor Espeon, providing a reverse shell upon receipt of a special packet(Citation: Umbreon Trend Micro)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1095", "comment": "[Umbreon](https://attack.mitre.org/software/S0221) provides access to the system via SSH or any other protocol that uses PAM to authenticate.(Citation: Umbreon Trend Micro)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1014", "comment": "[Umbreon](https://attack.mitre.org/software/S0221) hides from defenders by hooking libc function calls, hiding artifacts that would reveal its presence, such as the user account it creates to provide access and undermining strace, a tool often used to identify malware.(Citation: Umbreon Trend Micro)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1205", "comment": "[Umbreon](https://attack.mitre.org/software/S0221) provides additional access using its backdoor Espeon, providing a reverse shell upon receipt of a special packet.(Citation: Umbreon Trend Micro)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1078", "showSubtechniques": true}, {"techniqueID": "T1078.003", "comment": "[Umbreon](https://attack.mitre.org/software/S0221) creates valid local users to provide access to the system.(Citation: Umbreon Trend Micro)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}], "gradient": {"colors": ["#ffffff", "#66b1ff"], "minValue": 0, "maxValue": 1}, "legendItems": [{"label": "used by Umbreon", "color": "#66b1ff"}]}