[New Rule] Persistence via Docker Shortcut Modification (#733)

* [New Rule] Persistence via Docker Shortcut Modification

* ref url decoded

* added exclusions

* Update rules/macos/persistence_docker_shortcuts_plist_modification.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update rules/macos/persistence_docker_shortcuts_plist_modification.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* exclude some noisy procs and conv to kql

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

rules/macos/persistence_docker_shortcuts_plist_modification.toml

@@ -0,0 +1,45 @@
+[metadata]
+creation_date = "2020/12/18"
+maturity = "production"
+updated_date = "2020/12/18"
+
+[rule]
+author = ["Elastic"]
+description = """
+An adversary can establish persistence by modifying an existing macOS dock property list in order to execute a
+malicious application instead of the intended one when invoked.
+"""
+from = "now-9m"
+index = ["auditbeat-*", "logs-endpoint.events.*"]
+language = "kuery"
+license = "Elastic License"
+name = "Persistence via Docker Shortcut Modification"
+references = [
+    "https://github.com/specterops/presentations/raw/master/Leo Pitt/Hey_Im_Still_in_Here_Modern_macOS_Persistence_SO-CON2020.pdf",
+]
+risk_score = 47
+rule_id = "c81cefcb-82b9-4408-a533-3c3df549e62d"
+severity = "medium"
+tags = ["Elastic", "Host", "macOS", "Threat Detection", "Persistence"]
+type = "query"
+
+query = '''
+event.category : file and event.action : modification and 
+ file.path : /Users/*/Library/Preferences/com.apple.dock.plist and 
+ not process.name : (xpcproxy or cfprefsd or plutil or jamf or PlistBuddy or InstallerRemotePluginService)
+'''
+
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1543"
+name = "Create or Modify System Process"
+reference = "https://attack.mitre.org/techniques/T1543/"
+
+
+[rule.threat.tactic]
+id = "TA0003"
+name = "Persistence"
+reference = "https://attack.mitre.org/tactics/TA0003/"