Techniques › T1123 › AN0619
AN0619 Analytic 0619
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Unusual or unauthorized processes accessing microphone APIs (e.g., winmm.dll, avrt.dll) followed by audio file writes to user-accessible or temp directories.</p>
- Detects
- T1123 Audio Capture
- Part of
- DET0221 Behavioral Detection Strategy for T1123 Audio Capture Across Windows, Linux, macOS
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=10 | DC0035 Process Access |
| WinEventLog:Sysmon | EventCode=11 | DC0039 File Creation |
| WinEventLog:Security | EventCode=4688 | DC0032 Process 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 | Time span in which the process accesses audio APIs and writes files, to reduce false positives. |
TargetProcess | Set of approved processes known to legitimately use microphone (e.g., Zoom, Teams). |
WriteDirectory | Allowlist of paths where legitimate apps store audio (e.g., user media folders). |