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The public catalogue of detection rules. Every entry carries its source, the identifier it had there, its licence and its ATT&CK mapping.

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Potential AMSI Bypass Via .NET Reflection

Detects Request to "amsiInitFailed" that can be used to disable AMSI Scanning

ATT&CK coverage

Defense Impairment

T1685Disable or Modify Tools 278 detections cover this technique

Detection requirements

Log source product: windows
Log source category: process_creation

Detection logic

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The query as its source wrote it, its canonical form, and the content hash that pins this exact revision.

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Provenance

Where this detection came from, and what you may do with it.

At source: Open at source
Written by: Markus Neis
@Kostastsale
Licence: Detection Rule License 1.1Read the licence
Published: Aug 26, 2026
Version: 1

See also

3,144 from SigmaHQ 1,985 rated high