Boot Recovery Tampering via bcdedit
highWindowsSingle eventexperimentalsigma.bcdedit_recovery_tamper · v1.0.0
What it detects
Disabling Windows recovery with bcdedit — common ransomware precursor
MITRE ATT&CK mapping
- T1490Inhibit System Recovery· Impact
False positives and triage
Converted from Sigma; review before enabling.
The rule
Declarative YAML read by the detection engine — data, never executed. Confidence 70%. Source: rules/sigma/sigma.bcdedit_recovery_tamper.yaml, licensed under the Detection Rule License 1.1.
id: sigma.bcdedit_recovery_tamper
version: 1.0.0
status: experimental
severity: high
confidence: 0.7
platforms:
- windows
mitre_techniques:
- T1490
description: Disabling Windows recovery with bcdedit — common ransomware precursor (Sigma sample)
match:
event_category: process
process_path_contains_any:
- \bcdedit.exe
command_line_contains_any:
- recoveryenabled no
- bootstatuspolicy ignoreallfailures
false_positive_guidance: Converted from Sigma; review before enabling.
Adapted from the SigmaHQ rule “Boot Recovery Tampering via bcdedit”, distributed under the Detection Rule License 1.1. SigmaHQ.
Related detections
Run this rule on your own logs — offline
KIROSEC runs this rule and the rest of the library over Windows, Linux, macOS and cloud audit logs on the analyst's own machine. Every alert links to the events that raised it, and nothing leaves the device.