Techniques › T1123 › AN0621
AN0621 Analytic 0621
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Processes invoking AVFoundation or CoreAudio frameworks, accessing input devices via TCC logs or Unified Logs, followed by writing AIFF/WAV/MP3 files to disk.</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 |
|---|---|---|
| macos:unifiedlog | audio APIs | DC0021 OS API Execution |
| Apple TCC Logs | Microphone Access Events | DC0035 Process Access |
| fs:fsusage | File IO | DC0039 File 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 |
|---|---|
FrameworkCall | CoreAudio vs. AVFoundation vs. lower-level device access APIs. |
TargetDirectory | Suspicious file drops (e.g., ~/Library/Caches/, /tmp/, nonstandard user folders). |
AnomalousParent | Unexpected parent-child relationship between non-media apps and AV capture. |