Techniques › T1557.002 › AN1092
AN1092 Analytic 1092
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects suspicious gratuitous ARP responses or inconsistent IP-to-MAC mappings using auditd and packet capture. Behavioral focus is on unsolicited replies overriding legitimate ARP ownership.</p>
- Detects
- T1557.002 ARP Cache Poisoning
- Part of
- DET0387 Detect ARP Cache Poisoning Across Linux, Windows, and 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 |
|---|---|---|
| auditd:SYSCALL | setsockopt, ioctl modifying ARP entries | DC0085 Network Traffic Content |
| NSM:Flow | Gratuitous ARP replies with mismatched IP-MAC binding | 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 |
|---|---|
AllowedARPUpdates | Expected legitimate IP-to-MAC updates for servers or virtual routers. |
AlertThreshold | Number of anomalous ARP packets per second before triggering detection. |