kevmap

TechniquesT1071 › AN1227

AN1227 Analytic 1227

macOS · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Detects applications using abnormal protocols or high volume traffic not previously associated with the process image, such as Automator or AppleScript invoking curl or python sockets.</p>
Detects
T1071 Application Layer Protocol
Part of
DET0444 Detection of Command and Control Over Application Layer Protocols

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 sourceChannelData component
macos:osquerysocket_eventsDC0078 Network Traffic Flow
macos:unifiedloglog streamDC0064 Command 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.

FieldDescription
SocketParentProcessMatchNon-browser processes opening sockets to external IPs
DataFlowImbalanceRatioHigh outbound/inbound ratio indicating C2 beacon

KEV CVEs whose mapped technique this analytic detects

CVEVendor / productState
CVE-2021-45382D-Link Multiple RoutersMapped