Techniques › T1567.004 › AN0437
AN0437 Analytic 0437
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Processes such as curl, wget, or custom scripts initiating POST requests to webhook endpoints with encoded or bulk data. Defender perspective: abnormal chaining of file compression or access followed by outbound data to webhook URLs.</p>
- Detects
- T1567.004 Exfiltration Over Webhook
- Part of
- DET0153 Detection Strategy for Exfiltration Over Webhook
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:EXECVE | curl -X POST, wget --post-data | DC0064 Command Execution |
| auditd:SYSCALL | read/open of sensitive files | DC0055 File Access |
| NSM:Flow | large HTTPS POST requests to webhook endpoints | DC0085 Network Traffic Content |
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 |
|---|---|
AllowedTools | Expected command-line utilities allowed to interact with webhooks in enterprise environments. |
TimeWindow | Expected timeframe for legitimate webhook traffic (e.g., CI/CD deployments). |