Techniques › T1546.010 › AN1536
AN1536 Analytic 1536
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Registry key modification to AppInit_DLLs value followed by anomalous DLL loading by processes importing user32.dll, especially unsigned or uncommon DLLs, suggesting unauthorized AppInit persistence or privilege escalation.</p>
- Detects
- T1546.010 AppInit DLLs
- Part of
- DET0557 Detection Strategy for Event Triggered Execution: AppInit DLLs (Windows)
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=1 | DC0032 Process Creation |
| WinEventLog:Sysmon | EventCode=7 | DC0016 Module Load |
| WinEventLog:Sysmon | EventCode=13, 14 | DC0063 Windows Registry Key Modification |
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 |
|---|---|
ImagePathWhitelist | Paths or filenames of known-good DLLs to exclude from alerting |
UserContext | Context of the user modifying the registry key (e.g., admin vs standard user) |
TimeWindow | Temporal threshold for correlating registry modification and DLL load |
DLLSignatureStatus | Filter or flag unsigned or suspiciously signed DLLs |