Suspicious PUA - DefenderCheck Execution (via process_creation)
This rule detects the use of DefenderCheck, a tool to evaluate the signatures used in Microsoft Defender. It can be leveraged to figure out the strings / byte chains used in Microsoft Defender to detect a tool and thus used for AV evasion.
SigmahighWindowsv1
Full detection rule
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- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.