Techniques › T1559 › AN1359
AN1359 Analytic 1359
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects anomalous use of Mach ports, Apple Events, or XPC services for inter-process execution or code injection. Focuses on unexpected processes attempting to send privileged Apple Events (e.g., automation scripts injecting into security-sensitive apps).</p>
- Detects
- T1559 Inter-Process Communication
- Part of
- DET0493 Detect Abuse of Inter-Process Communication (T1559)
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 | Unusual Mach port registration or access attempts between unrelated processes | DC0035 Process Access |
| macos:osquery | exec: Unexpected execution of osascript or AppleScript targeting sensitive apps | 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 |
|---|---|
AllowedAppleEventTargets | Whitelisted app-to-app Apple Event communications (e.g., Finder automation). |
MachPortBaseline | Baseline of Mach ports and XPC services normally used in the environment. |