Techniques › T1567.004 › AN0436
AN0436 Analytic 0436
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Unusual processes (e.g., powershell.exe, wscript.exe, mshta.exe) posting data to webhook endpoints (Discord, Slack, webhook.site) using HTTP POST/PUT requests. Defender perspective: suspicious process lineage followed by outbound HTTPS traffic to webhook domains.</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 |
|---|---|---|
| WinEventLog:Sysmon | EventCode=1 | DC0032 Process Creation |
| WinEventLog:Sysmon | EventCode=3, 22 | DC0082 Network Connection Creation |
| WinEventLog:Security | EventCode=4663, 4670, 4656 | DC0055 File Access |
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 |
|---|---|
WebhookDomains | Domains to monitor such as discord.com/api/webhooks, slack.com/api, webhook.site. |
UploadSizeThreshold | Threshold for abnormal data sent via webhook requests. |
ApprovedApps | List of approved business apps using webhooks to reduce noise. |