Malicious MSDT Command Line Invoking Follina Payload (via process_creation)

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1203Exploitation for Client Execution
Persistence
Priv Esc
Defense Evasion
- T1218System Binary Proxy Execution
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the Microsoft Support Diagnostic Tool running with the diagnostic parameters and script markers used by Follina exploitation. CVE-2022-30190 passes an IT_BrowseForFile payload through the PCWDiagnostic package so that MSDT executes embedded PowerShell. MSDT command lines carrying these markers indicate an active exploit rather than genuine troubleshooting.

Reporting behind it

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Malicious MSDT Command Line Invoking Follina Payload (via process_creation)

Pivot detection · T1218 · 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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