Techniques › T1567 › AN1515
AN1515 Analytic 1515
ESXi · attack.mitre.org · ATT&CK Enterprise v19.2
<p>ESXi guest OS or management interface processes establishing unexpected external HTTPS connections. Defender perspective: monitor vmx or hostd processes making outbound web requests with significant data transfer.</p>
- Detects
- T1567 Exfiltration Over Web Service
- Part of
- DET0548 Detection Strategy for Exfiltration Over Web Service
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 |
|---|---|---|
| esxi:vmkernel | network session initiation with external HTTPS services | DC0082 Network Connection Creation |
| esxi:hostd | file copy or datastore upload via HTTPS | 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 |
|---|---|
DatastoreTransferThreshold | Threshold for outbound transfers from ESXi datastores. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2022-41082 | Microsoft Exchange Server | Mapped |
| CVE-2024-11182 | MDaemon Email Server | Mapped |
| CVE-2025-54309 | CrushFTP CrushFTP | Mapped |