Techniques › T1071.002 › AN1169
AN1169 Analytic 1169
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects FTP, SMB, or TFTP traffic initiated by suspicious processes like PowerShell, cmd.exe, or rundll32.exe—especially with large outbound file transfers or unbalanced traffic volume.</p>
- Detects
- T1071.002 File Transfer Protocols
- Part of
- DET0416 Detection of File Transfer Protocol-Based C2 (FTP, FTPS, SMB, TFTP)
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 |
| NSM:Flow | ftp.log, smb_files.log | 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 |
|---|---|
ProcessImageFilter | Limit to non-standard FTP clients or suspicious binaries (e.g., cmd, mshta) |
DataFlowDirectionThreshold | Ratio of outbound:inbound bytes; e.g., >90% outbound |
FilenamePattern | Suspicious file extensions or naming (e.g., .zip, .rar, random hash names) |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2023-40044 | Progress WS_FTP Server | Mapped |