Suspicious ETW Bypass via PSEtwLogProvider Patching (via ps_script)

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects PowerShell script content that reaches into the PSEtwLogProvider internal enabled flag to disable Event Tracing for Windows, an in-memory logging evasion used by the SEO poisoning infostealer. Patching this field blinds PowerShell script block telemetry. Legitimate scripts do not manipulate this private ETW provider field.

Reporting behind it

Related detections9 linkedT1685 — drag to rearrange

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In-Memory AMSI or ETW Bypass in PowerShell (via process_creation)

Malicious Microsoft Defender Critical Security Components Disabled - Command (via process_creation)

Malicious Microsoft Defender Service Deactivation Attempt - Command (via process_creation)

Malicious Wdigest Authentication Enabled - Reg via Command (via process_creation)

Suspicious ETW Bypass via PSEtwLogProvider Patching (via ps_script)

Pivot detection · T1685 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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