Techniques › T1104 › AN0637
AN0637 Analytic 0637
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Initial process initiates outbound connection to first-stage C2, receives payloads or commands, then spawns or injects into a second process that establishes a new outbound connection to an unrelated destination (second-stage C2).</p>
- Detects
- T1104 Multi-Stage Channels
- Part of
- DET0228 Detect Multi-Stage Command and Control Channels
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=3, 22 | DC0082 Network Connection Creation |
| WinEventLog:Sysmon | EventCode=1 | DC0032 Process 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 |
|---|---|
TimeWindow | Correlate two-stage behavior occurring within a short window (e.g., 1-5 minutes) |
ParentProcess | Tune to exclude known legitimate updaters and management agents |
DestinationHostname | May be customized to exclude known corporate domains and CDNs |