sigmaDRL-1.1from SigmaHQ/sigma
Windows Defender Threat Severity Default Action Modified
Detects modifications or creations of Windows Defender's default threat action settings based on severity to 'allow' or take 'no action'. This is a highly suspicious configuration change that effectively disables Defender's ability to automatically mitigate threats of a certain severity level, allowing malicious software to run unimpeded. An attacker might use this technique to bypass defenses before executing payloads.
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ATT&CK techniques
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