Techniques › T1048.001 › AN1390
AN1390 Analytic 1390
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects command-line utilities or scripts using encryption libraries or symmetric algorithms (e.g., OpenSSL AES, GPG, Python + PyCrypto) in conjunction with outbound file transfers or traffic to external destinations.</p>
- Detects
- T1048.001 Exfiltration Over Symmetric Encrypted Non-C2 Protocol
- Part of
- DET0503 Behavioral Detection Strategy for Exfiltration Over Symmetric Encrypted Non-C2 Protocol
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 |
|---|---|---|
| auditd:SYSCALL | execve | DC0032 Process Creation |
| auditd:SYSCALL | connect | DC0082 Network Connection Creation |
| NSM:Flow | conn.log or flow data | DC0078 Network Traffic Flow |
| NSM:Flow | ssl.log (for TLS handshake analysis), dns.log (tunneling indicators) | 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 |
|---|---|
FileTransferIndicator | Threshold for transferred data size or extension type. |
LibraryCallTracking | Hooks into use of encryption libraries like `libcrypto.so`, `pycrypto`, `gpg`. |