Techniques › T1573.001 › AN0403
AN0403 Analytic 0403
ESXi · attack.mitre.org · ATT&CK Enterprise v19.2
<p>ESXi daemons (hostd, vpxa) unexpectedly using symmetric encryption routines for external connections. Defender identifies logs of service traffic with encrypted payloads inconsistent with VMware management baselines.</p>
- Detects
- T1573.001 Symmetric Cryptography
- Part of
- DET0143 Detection Strategy for Encrypted Channel via Symmetric Cryptography across OS Platforms
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:vpxd | Symmetric crypto routines triggered for external session | DC0038 Application Log Content |
| esxcli:network | Socket sessions with randomized payloads inconsistent with TLS | 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 |
|---|---|
AllowedMgmtHosts | Baseline list of approved vCenter and update endpoints. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2021-40449 | Microsoft Windows | Mapped |
| CVE-2021-40539 | Zoho ManageEngine | Mapped |
| CVE-2021-44077 | Zoho ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus | Mapped |