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BCDEdit Failure Recovery Modification - Splunk Security Content

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This search looks for flags passed to bcdedit.exe modifications to the built-in Windows error recovery boot configurations. This is typically used by ransomware to prevent recovery. The SPL above uses the following Macros: bcdedit_failure_recovery_modification_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL. List of fields required to use this analytic. The detection is based on data that originates from Endpoint Detection and Response (EDR) agents. These agents are designed to provide security-related telemetry from the endpoints where the agent is installed. To implement this search, you must ingest logs that contain the process GUID, process name, and parent process. Additionally, you must ingest complete command-line executions. These logs must be processed using the appropriate Splunk Technology Add-ons that are specific to the EDR product. The logs must also be mapped to the Processes node of the Endpoint

Detection: BCDEdit Failure Recovery Modification | Splunk Security Content Table of Contents Detection: BCDEdit Failure Recovery Modification Updated Date: 2026-05-13 ID: 809b31d2-5462-11eb-ae93-0242ac130002 Author: Michael Haag, Splunk Type: TTP Product: Splunk Enterprise Security Description The following analytic detects modifications to the Windows error recovery boot configurations using bcdedit.exe with flags such as "recoveryenabled" and "no". It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names, parent processes, and command-line executions. Th

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