From 6ca381763d28bf298c6d9256cd25a70a923ce2e5 Mon Sep 17 00:00:00 2001
From: Samirbous <64742097+Samirbous@users.noreply.github.com>
Date: Mon, 8 Feb 2021 17:39:22 +0100
Subject: [PATCH] [New Rule] Execution with Administrator Privileges via Apple
 Scripting (#777)

* [New Rule] Execution with Administrator Privileges via Apple Scripting

* Update privilege_escalation_applescript_with_admin_privs.toml

* Update rules/macos/privilege_escalation_applescript_with_admin_privs.toml

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>

* Update rules/macos/privilege_escalation_applescript_with_admin_privs.toml

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>

* Update rules/macos/privilege_escalation_applescript_with_admin_privs.toml

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>

* Update rules/macos/privilege_escalation_applescript_with_admin_privs.toml

Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com>

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com>
---
 ...calation_applescript_with_admin_privs.toml | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 rules/macos/privilege_escalation_applescript_with_admin_privs.toml

diff --git a/rules/macos/privilege_escalation_applescript_with_admin_privs.toml b/rules/macos/privilege_escalation_applescript_with_admin_privs.toml
new file mode 100644
index 000000000..cc6659e35
--- /dev/null
+++ b/rules/macos/privilege_escalation_applescript_with_admin_privs.toml
@@ -0,0 +1,53 @@
+[metadata]
+creation_date = "2020/12/27"
+maturity = "production"
+updated_date = "2020/12/27"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies execution of the Apple script interpreter (osascript) without a password prompt and with administrator
+privileges.
+"""
+from = "now-9m"
+index = ["auditbeat-*", "logs-endpoint.events.*"]
+language = "eql"
+license = "Elastic License"
+name = "Apple Scripting Execution with Administrator Privileges"
+references = ["https://discussions.apple.com/thread/2266150"]
+risk_score = 47
+rule_id = "827f8d8f-4117-4ae4-b551-f56d54b9da6b"
+severity = "medium"
+tags = ["Elastic", "Host", "macOS", "Threat Detection", "Execution", "Privilege Escalation"]
+type = "eql"
+
+query = '''
+process where event.type in ("start", "process_started") and process.name : "osascript" and
+  process.command_line : "osascript*with administrator privileges"
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1078"
+name = "Valid Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/"
+
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1059"
+name = "Command and Scripting Interpreter"
+reference = "https://attack.mitre.org/techniques/T1059/"
+
+
+[rule.threat.tactic]
+id = "TA0002"
+name = "Execution"
+reference = "https://attack.mitre.org/tactics/TA0002/"