Suspicious OneNote Spawning LOLBin from Exported Attachment Directory

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1204.002Malicious File
Persistence
Priv Esc
Defense Evasion
- T1218System Binary Proxy Execution
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects Microsoft OneNote spawning script interpreters or living-off-the-land binaries such as cmd.exe powershell.exe wscript.exe or mshta.exe, which occurs when a user opens a weaponised embedded attachment. OneNote phishing lures drop payloads under the Temp OneNote Exported folder and launch them via these LOLBins, making the parent-child relationship a reliable indicator of initial execution.

Reporting behind it

Related detections9 linkedT1204.002 — drag to rearrange

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Suspicious OneNote Spawning LOLBin from Exported Attachment Directory

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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