[New Rule] Potential MacOS Privacy Controls Bypass via TCCDB Modification

rules/macos/defense_evasion_privacy_controls_tcc_database_modification.toml

@@ -0,0 +1,51 @@
+[metadata]
+creation_date = "2020/12/23"
+maturity = "production"
+updated_date = "2020/12/23"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies the use of sqlite3 to directly modify the Transparency, Consent, and Control (TCC) SQLite database. This may
+indicate an attempt to bypass macOS privacy controls, including access to sensitive resources like the system camera,
+microphone, address book, and calendar.
+"""
+from = "now-9m"
+index = ["auditbeat-*", "logs-endpoint.events.*"]
+language = "eql"
+license = "Elastic License"
+name = "Potential Privacy Control Bypass via TCCDB Modification"
+references = [
+    "https://applehelpwriter.com/2016/08/29/discovering-how-dropbox-hacks-your-mac/",
+    "https://github.com/bp88/JSS-Scripts/blob/master/TCC.db Modifier.sh",
+    "https://medium.com/@mattshockl/cve-2020-9934-bypassing-the-os-x-transparency-consent-and-control-tcc-framework-for-4e14806f1de8",
+]
+risk_score = 47
+rule_id = "eea82229-b002-470e-a9e1-00be38b14d32"
+severity = "medium"
+tags = ["Elastic", "Host", "macOS", "Threat Detection", "Defense Evasion"]
+type = "eql"
+
+query = '''
+process where event.type in ("start", "process_started") and process.name : "sqlite*" and 
+ process.args : "/*/Application Support/com.apple.TCC/TCC.db"
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1562"
+name = "Impair Defenses"
+reference = "https://attack.mitre.org/techniques/T1562/"
+[[rule.threat.technique.subtechnique]]
+id = "T1562.001"
+name = "Disable or Modify Tools"
+reference = "https://attack.mitre.org/techniques/T1562/001/"
+
+
+
+[rule.threat.tactic]
+id = "TA0005"
+name = "Defense Evasion"
+reference = "https://attack.mitre.org/tactics/TA0005/"