Techniques › T1573.001 › AN0402
AN0402 Analytic 0402
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Launchd jobs or user processes invoking symmetric crypto APIs from the Security framework and generating outbound connections carrying randomized payloads inconsistent with normal TLS patterns.</p>
- Detects
- T1573.001 Symmetric Cryptography
- Part of
- DET0143 Detection Strategy for Encrypted Channel via Symmetric Cryptography across OS Platforms
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 |
|---|---|---|
| macos:unifiedlog | Process using AES/RC4 routines unexpectedly | DC0032 Process Creation |
| macos:unifiedlog | Encrypted connection with anomalous payload entropy | 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 |
|---|---|
DoHResolvers | Legitimate DNS-over-HTTPS endpoints to avoid FP. |
PayloadEntropyThreshold | Define entropy level at which traffic should be flagged. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2021-40449 | Microsoft Windows | Mapped |
| CVE-2021-40539 | Zoho ManageEngine | Mapped |
| CVE-2021-44077 | Zoho ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus | Mapped |