Techniques › T1114.003 › AN1589
AN1589 Analytic 1589
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Creation of inbox rules via PowerShell (New-InboxRule) or transport rules using Exchange cmdlets. Correlates user behavior, cmdlet usage, and rule properties.</p>
- Detects
- T1114.003 Email Forwarding Rule
- Part of
- DET0576 Email Forwarding Rule Abuse Detection Across Platforms
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| WinEventLog:PowerShell | EventCode=4103, 4104, 4105, 4106 | DC0064 Command Execution |
| WinEventLog:Security | EventCode=4688 | DC0032 Process Creation |
| m365:exchange | Cmdlet - New-InboxRule | DC0070 Cloud Service Metadata |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
UserContext | Certain service accounts or admin contexts may be expected to run these rules. |
TimeWindow | Correlate between rule creation and follow-on message forwarding within this timeframe. |
TargetMailbox | Whitelisted or trusted destination addresses may be tuned per org policy. |