Techniques › T1071 › AN1226
AN1226 Analytic 1226
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects suspicious curl, wget, or custom socket traffic that leverages DNS, HTTPS, or IRC-style protocols with unbalanced traffic or beacon-like intervals.</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 source | Channel | Data component |
|---|---|---|
| NSM:Flow | dns, ssl, conn | DC0085 Network Traffic Content |
| auditd:SYSCALL | execve | DC0032 Process 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 |
|---|---|
KnownPortsToMonitor | Uncommon ports for HTTPS, IRC, DNS (e.g., 8443, 5353) |
BeaconTimingThreshold | Detect intervals of outbound traffic within fixed timeframes |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2021-45382 | D-Link Multiple Routers | Mapped |