MITRE ATT&CKtechnique
T1688 Safe Mode Boot
- Domain
- enterprise
- Tactics
- Defense Impairment
- Platforms
- Windows
- Version
- 1.0
- Created
- 2026-04-14
Description
Adversaries may abuse Windows safe mode to disable endpoint defenses. Safe mode starts up the Windows operating system with a limited set of drivers and services. Third-party security software such as endpoint detection and response (EDR) tools may not start after booting Windows in safe mode. There are two versions of safe mode: Safe Mode and Safe Mode with Networking. It is possible to start additional services after a safe mode boot.
Adversaries may abuse safe mode to disable endpoint defenses that may not start with a limited boot. Hosts can be forced into safe mode after the next reboot via modifications to Boot Configuration Data (BCD) stores, which are files that manage boot application settings.
Adversaries may also add their malicious applications to the list of minimal services that start in safe mode by modifying relevant Registry values (i.e. Modify Registry). Malicious Component Object Model (COM) objects may also be registered and loaded in safe mode.
Related
Tactic · MITRE ATT&CK (1)
- TA0112 Defense Impairment tactic
Referenced by MITRE ATT&CK · mitigates (2)
Referenced by MITRE ATT&CK · uses (7)
Referenced by Compliance · mitigates (1)
- CIS-18.3 Remediate Penetration Test Findings CIS Safeguard v8.1
References
- https://www.bleepingcomputer.com/news/security/revil-ransomware-has-a-new-windows-safe-mode-encryption-mode/ BleepingComputer REvil 2021
- https://www.sophos.com/en-us/blog/snatch-ransomware-reboots-pcs-into-safe-mode-to-bypass-protection Sophos Safe Mode Boot
- https://www.cybereason.com/blog/research/medusalocker-ransomware Cybereason safe mode boot
- https://support.microsoft.com/en-us/windows/windows-startup-settings-1af6ec8c-4d4a-4b23-adb7-e76eef0b847f Microsoft Windows Startup Settings
- https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/bcdedit Microsoft bcdedit
- https://www.cyberark.com/resources/blog/cyberark-labs-from-safe-mode-to-domain-compromise CyberArk Labs Safe Mode 2016