Techniques › T1027.018 › AN2065
AN2065 Analytic 2065
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detection identifies execution of scripts or applications containing invisible Unicode payloads reconstructed at runtime, correlated with abnormal AppleScript, JavaScript for Automation, or shell execution and subsequent process or network behavior inconsistent with visible file content.</p>
- Detects
- T1027.018 Invisible Unicode
- Part of
- DET0920 Detection Strategy for Invisible Unicode
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 |
|---|---|---|
| NSM:Flow | log entries indicating network connection initiation on macOS | DC0082 Network Connection Creation |
| macos:unifiedlog | Execution of osascript, sh, bash, zsh, installer, open | DC0064 Command Execution |
| macOS:unifiedlog | looking for file access to scripts with abnormal encoding patterns | DC0055 File Access |
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 |
|---|---|
ExecutionContext | Use of abnormal AppleScript or JavaScript functions (such as eval()) not typically expected |
UnicodeCharacterSet | Specific unicode ranges monitored (zero-width, PUA, bidi) |