OneNote Spawning Script Interpreter for AsyncRAT Delivery (via process_creation)

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1204.002Malicious File
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects Microsoft OneNote spawning a command shell, script host, or mshta process, the initial-execution behavior of the AsyncRAT chain that embeds a malicious HTA or script inside a OneNote document. Adversaries leverage OneNote attachments to bypass macro controls and launch a loader, making early detection critical for stopping the delivery chain before the RAT is decrypted.

Reporting behind it

Related detections9 linkedT1204.002 — drag to rearrange

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OneNote Spawning Script Interpreter for AsyncRAT Delivery (via process_creation)

Pivot detection · T1204.002 · 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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