Suspicious PowerShell Reflective Assembly Load With Registry Property Read via Script Block (via ps_script)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1027Obfuscated Files or Information
- T1620Reflective Code Loading
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects PowerShell that reads data from a registry value and reflectively loads a .NET assembly in memory, the obfuscated in-memory loading behavior Gootloader uses per Red Canary. Reflective assembly loading combined with registry-stored payloads avoids writing an executable to disk, so this combination is a strong indicator of fileless second-stage execution.

Reporting behind it

Related detections9 linkedT1027 — drag to rearrange

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Suspicious PowerShell Reflective Assembly Load With Registry Property Read via Script Block (via ps_script)

Pivot detection · T1027 · 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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