Techniques › T1552.006 › AN1075
AN1075 Analytic 1075
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Correlates file enumeration of XML files in the SYSVOL share with suspicious process execution that decodes or reads encrypted credentials embedded in Group Policy Preference files (e.g., Get-GPPPassword.ps1, gpprefdecrypt.py, Metasploit). Detects abnormal access to \DOMAIN\SYSVOL combined with XML file parsing or decryption logic.</p>
- Detects
- T1552.006 Group Policy Preferences
- Part of
- DET0381 Detect Access and Decryption of Group Policy Preference (GPP) Credentials in SYSVOL
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:Sysmon | EventCode=11 | DC0039 File Creation |
| WinEventLog:Sysmon | EventCode=1 | DC0032 Process Creation |
| WinEventLog:Security | EventCode=5145 | DC0102 Network Share Access |
| WinEventLog:PowerShell | Scripts with references to XML parsing, AES decryption, or gpprefdecrypt logic | 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 |
|---|---|
UserContext | Tune to exclude authorized admin users or domain controllers accessing SYSVOL |
TimeWindow | Adjust for correlation timing between file access and script execution |
KnownToolsSignature | Extend to include known GPP parsing tool names or script hashes |
HostType | Distinguish between expected access from DCs vs. lateral movement from workstations |