Techniques › T1556.006 › AN0543
AN0543 Analytic 0543
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects registry and Group Policy modifications that disable or weaken MFA, suspicious PowerShell usage modifying MFA-related attributes, and anomalous login sessions succeeding without expected MFA challenge.</p>
- Detects
- T1556.006 Multi-Factor Authentication
- Part of
- DET0190 Detect MFA Modification or Disabling 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:Security | EventCode=4739 | DC0066 Active Directory Object Modification |
| WinEventLog:PowerShell | Set-ADUser or Set-ADAuthenticationPolicy with MFA attributes disabled | DC0029 Script Execution |
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 |
|---|---|
WatchedAttributes | List of AD attributes or policy fields tied to MFA enforcement that may vary by organization. |
TimeWindow | Correlation window between MFA policy changes and anomalous login behavior. |