Techniques › T1553.001 › AN0800
AN0800 Analytic 0800
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Correlates suspicious removal or modification of the com.apple.quarantine extended attribute, manipulation of LSFileQuarantineEnabled values in Info.plist, and unexpected process execution of unsigned or non-notarized binaries. Also monitors abnormal trust validation failures in unified logs and unusual activity in QuarantineEvents database entries.</p>
- Detects
- T1553.001 Gatekeeper Bypass
- Part of
- DET0288 Detect Gatekeeper Bypass via Quarantine Flag and Trust Control Manipulation
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 | xattr -d com.apple.quarantine or similar attribute removal commands | DC0059 File Metadata |
| macos:unifiedlog | Trust validation failures or bypass attempts during notarization and code signing checks | DC0032 Process Creation |
| macos:osquery | Changes to LSFileQuarantineEnabled field in Info.plist | DC0061 File Modification |
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 |
|---|---|
QuarantineBypassAllowList | Legitimate enterprise update tools or deployment frameworks that may strip quarantine flags |
CertificateAuthorityList | Baseline trusted Apple Developer IDs and enterprise certs used for code signing |
TimeWindow | Time correlation window for xattr modification followed by suspicious process execution |