Techniques › T1114 › AN1309
AN1309 Analytic 1309
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Correlates creation of email forwarding rules or header anomalies (e.g., X-MS-Exchange-Organization-AutoForwarded) with suspicious process execution, file access of .pst/.ost files, and network connections to external SMTP servers.</p>
- Detects
- T1114 Email Collection
- Part of
- DET0476 Email Collection via Local Email Access and Auto-Forwarding Behavior
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:Security | EventCode=5145 | DC0102 Network Share Access |
| WinEventLog:PowerShell | EventCode=4103, 4104, 4105, 4106 | DC0064 Command Execution |
| WinEventLog:Application | Exchange logs or header artifacts | DC0038 Application Log Content |
| WinEventLog:Sysmon | EventCode=3, 22 | DC0082 Network Connection Creation |
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 |
|---|---|
TimeWindow | Defines correlation window across email rule creation and outbound SMTP. |
UserContext | Filters for admin or service accounts to reduce false positives. |
SMTPDomainList | Allows tuning based on expected external email domains. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2020-0688 | Microsoft Exchange Server | Mapped |
| CVE-2024-27443 | Synacor Zimbra Collaboration Suite (ZCS) | Mapped |
| CVE-2024-42009 | Roundcube Webmail | Mapped |