Techniques › T1027.013 › AN0237
AN0237 Analytic 0237
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detection of processes that load or decode encrypted/encoded files in memory and subsequently execute or inject them, indicating payload unpacking or memory-resident malware.</p>
- Detects
- T1027.013 Encrypted/Encoded File
- Part of
- DET0087 Encrypted or Encoded File Payload Detection Strategy
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=7 | DC0016 Module Load |
| WinEventLog:Sysmon | EventCode=10 | DC0035 Process Access |
| WinEventLog:Security | EventCode=4688 | 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 |
|---|---|
Image | Path of decoder utilities (e.g., certutil.exe, powershell.exe) can vary across environments. |
CommandLine | Base64/hex strings used may change per encoded payload. |
TimeWindow | The duration between file decode and execution may differ across implementations. |