Techniques › T1200 › AN0187
AN0187 Analytic 0187
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Chain: (1) unified logs report IOUSBHost/IOThunderbolt device arrival; (2) diskarbitrationd attaches a new volume; (3) optional: config profile manipulation or new network interface MAC obtains a lease. Correlate unifiedlogs (subsystems: IOUSBHost, IOKit, diskarbitrationd), FSEvents, and DHCP/Zeek.</p>
- Detects
- T1200 Hardware Additions
- Part of
- DET0069 Detect unauthorized or suspicious Hardware Additions (USB/Thunderbolt/Network)
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 | Device attached|enumerated VID/PID | DC0038 Application Log Content |
| macos:unifiedlog | mounted|appeared|DA: disk* attached | DC0042 Drive Creation |
| NSM:Flow | MAC not in allow-list acquiring IP (DHCP) | DC0078 Network Traffic Flow |
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 |
|---|---|
ManagedUSBPolicy | MDM profile expectations for external media and Thunderbolt mode; deviations alert. |
KnownAppleAccessories | VID/PID for corporate-issued docks/keyboards. |