IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Enumeration of Users or Groups via Built-in Commandsedit
Identifies the execution of macOS built-in commands related to account or group enumeration. Adversaries may use account and group information to orient themselves before deciding how to act.
Rule type: eql
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- macOS
- Threat Detection
- Discovery
Version: 100 (version history)
Added (Elastic Stack release): 7.12.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
process where event.type in ("start", "process_started") and (
process.name : ("ldapsearch", "dsmemberutil") or (process.name :
"dscl" and process.args : ("read", "-read", "list", "-list",
"ls", "search", "-search") and process.args : ("/Active
Directory/*", "/Users*", "/Groups*")) ) and not
process.parent.executable :
("/Applications/NoMAD.app/Contents/MacOS/NoMAD",
"/Applications/ZoomPresence.app/Contents/MacOS/ZoomPresence",
"/Applications/Sourcetree.app/Contents/MacOS/Sourcetree",
"/Library/Application Support/JAMF/Jamf.app/Contents/MacOS/JamfDaemon.
app/Contents/MacOS/JamfDaemon", "/Applications/Jamf
Connect.app/Contents/MacOS/Jamf Connect",
"/usr/local/jamf/bin/jamf", "/Library/Application
Support/AirWatch/hubd", "/opt/jc/bin/jumpcloud-agent",
"/Applications/ESET Endpoint
Antivirus.app/Contents/MacOS/esets_daemon", "/Applications/ESET
Endpoint Security.app/Contents/MacOS/esets_daemon", "/Library/Pri
vilegedHelperTools/com.fortinet.forticlient.uninstall_helper" )
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Permission Groups Discovery
- ID: T1069
- Reference URL: https://attack.mitre.org/techniques/T1069/
Rule version historyedit
- Version 100 (8.5.0 release)
-
- Formatting only
- Version 5 (8.4.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and not process.parent.executable : ("/Applications/NoMAD.app/Contents/MacOS/NoMAD", "/Applications/ZoomPresence.app/Contents/MacOS/ZoomPresence", "/Applications/Sourcetree.app/Contents/MacOS/Sourcetree", "/Library/Application Support/JAMF/Jamf.app/Contents/MacOS/JamfDaemon. app/Contents/MacOS/JamfDaemon", "/Applications/Jamf Connect.app/Contents/MacOS/Jamf Connect", "/usr/local/jamf/bin/jamf" ) and process.name : ("ldapsearch", "dsmemberutil") or (process.name : "dscl" and process.args : ("read", "-read", "list", "-list", "ls", "search", "-search") and process.args : ("/Active Directory/*", "/Users*", "/Groups*"))
-
- Version 3 (8.2.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and not process.parent.executable : ("/Applications/NoMAD.app/Contents/MacOS/NoMAD", "/Applications/ZoomPresence.app/Contents/MacOS/ZoomPresence", "/Applications/Sourcetree.app/Contents/MacOS/Sourcetree", "/Library/Application Support/JAMF/Jamf.app/Contents/MacOS/JamfDaemon. app/Contents/MacOS/JamfDaemon", "/usr/local/jamf/bin/jamf" ) and process.name : ("ldapsearch", "dsmemberutil") or (process.name : "dscl" and process.args : ("read", "-read", "list", "-list", "ls", "search", "-search") and process.args : ("/Active Directory/*", "/Users*", "/Groups*"))
-
- Version 2 (7.13.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and not process.parent.executable : ("/Applications/NoMAD.app/Contents/MacOS/NoMAD", "/Applications/ZoomPresence.app/Contents/MacOS/ZoomPresence") and process.name : ("ldapsearch", "dsmemberutil") or (process.name : "dscl" and process.args : ("read", "-read", "list", "-list", "ls", "search", "-search") and process.args : ("/Active Directory/*", "/Users*", "/Groups*"))
-