Techniques › T1008 › AN1377
AN1377 Analytic 1377
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Creation of outbound connections on alternate ports or using covert transport (e.g., ICMP, DNS) from non-network-intensive processes, following known disruption or blocked traffic.</p>
- Detects
- T1008 Fallback Channels
- Part of
- DET0499 Behavioral Detection of Fallback or Alternate C2 Channels
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 | outbound connections | DC0082 Network Connection Creation |
| NSM:Flow | alternate ports | 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 |
|---|---|
ProtocolType | Can filter for rare fallback channel types (e.g., ICMP, DNS over HTTP). |
UserContext | Tuning by user (e.g., root vs. service account) helps suppress noise. |