Techniques › T1205.001 › AN0845
AN0845 Analytic 0845
Network Devices · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Router/switch receives a knock pattern (same src touches device unicast, broadcast, and network-address on same or stepped ports) followed by ACL/line-vty/service enable and the first mgmt session success.</p>
- Detects
- T1205.001 Port Knocking
- Part of
- DET0302 Port-knock → rule/daemon change → first successful connect (T1205.001)
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 |
|---|---|---|
| networkdevice:syslog | Config/ACL changes, line vty transport input changes, telnet/ssh/http(s) enable, image/feature module changes. | DC0078 Network Traffic Flow |
| NSM:Flow | Series of denied/closed flows to distinct ports then success to mgmt port from same src_ip within TimeWindow. | DC0082 Network Connection 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 |
|---|---|
MgmtPortSet | Mgmt ports to focus on: 22,23,2323,80,443,161,4786. |
DeviceRole | Tighten thresholds on edge/internet-facing devices. |