Techniques › T1001.001 › AN0033
AN0033 Analytic 0033
ESXi · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Anomalous traffic from ESXi host management daemons (like hostd or vpxa) embedding non-standard payloads in management protocols (e.g., HTTPS) or beaconing behavior.</p>
- Detects
- T1001.001 Junk Data
- Part of
- DET0011 Detecting Junk Data in C2 Channels via Behavioral Analysis
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 activity | DC0085 Network Traffic Content |
| esxi:hostd | System service interactions | DC0082 Network Connection 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 |
|---|---|
TLSFingerprintMismatch | Detects mismatched TLS client behavior vs expected for hostd/vpxa. |
UnusualDestinationPorts | Highlight traffic from ESXi hosts to uncommon ports outside vCenter ranges. |