Techniques › T1218.011 › AN1308
AN1308 Analytic 1308
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects rundll32.exe invoked with atypical arguments (.dll, .cpl, javascript:, mshtml). DLLs not normally loaded by rundll32 are mapped into memory. Control_RunDLL or RunHTMLApplication invoked. Suspicious DLLs or scripts accessed from disk or network. Rundll32 reaches out to external domains (e.g., fetching .sct or .hta).</p>
- Detects
- T1218.011 Rundll32
- Part of
- DET0475 Detection Strategy for T1218.011 Rundll32 Abuse
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=1 | DC0032 Process Creation |
| WinEventLog:Sysmon | EventCode=7 | DC0016 Module Load |
| WinEventLog:Sysmon | EventCode=11 | DC0039 File Creation |
| WinEventLog:Sysmon | EventCode=3, 22 | 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 |
|---|---|
TimeWindow | Correlating rundll32 invocation with DLL load or network activity within X seconds. |
ParentProcessFilter | Limit detection to suspicious parent processes (e.g., explorer.exe, office apps) vs. trusted installers. |
AllowedDLLs | Baseline list of legitimate DLLs frequently executed by rundll32 in the environment. |
ExternalIPRange | Scope of external IP ranges considered anomalous for rundll32 network connections. |