Techniques › T1090.002 › AN0925
AN0925 Analytic 0925
ESXi · attack.mitre.org · ATT&CK Enterprise v19.2
<p>ESXi shell or guest VM tools initiate external connections via scripted traffic forwarding to Internet-based proxies. Detected by firewall or shell audit logs showing outbound connection spikes from hypervisor or guest VM to remote proxy nodes.</p>
- Detects
- T1090.002 External Proxy
- Part of
- DET0325 External Proxy Behavior via Outbound Relay to Intermediate Infrastructure
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:shell | None | DC0032 Process Creation |
| esxi:vmkernel | None | DC0078 Network Traffic Flow |
| NSM:Flow | conn.log | 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 |
|---|---|
VMOutboundPatterns | Detect when VMs communicate with Internet IPs not in workload profiles. |
ProxyHostPattern | Regex for proxy-related tools/scripts executed on the host. |
ConnectionDirectionality | Outbound only connections from ESXi to new IPs. |