Techniques › T1222 › AN0836
AN0836 Analytic 0836
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>macOS-specific permission modification behavioral chain: (1) chmod/chown/chflags process execution, (2) System Integrity Protection (SIP) bypass attempts, (3) Extended attribute (xattr) modifications, (4) Unified log correlation with file system events, (5) Subsequent access to previously restricted resources</p>
- Detects
- T1222 File and Directory Permissions Modification
- Part of
- DET0299 Multi-Platform File and Directory Permissions Modification 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 |
|---|---|---|
| macos:unifiedlog | process execution events for chmod, chown, chflags with unusual parameters or targets | DC0032 Process Creation |
| fs:fsevents | file system events indicating permission or attribute changes | DC0059 File Metadata |
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 |
|---|---|
SIPProtectedPaths | macOS system paths protected by SIP that should never have permission modifications |
SuspiciousFlagCombinations | chflags parameter combinations indicating evasive behavior (uchg, schg, hidden) |
XattrMonitoringScope | Extended attributes to monitor for unauthorized modifications |
UnifiedLogRetention | Log retention period for correlating permission changes with subsequent access |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2022-22960 | VMware Multiple Products | Mapped |