MacOS Keychains Dumped

Original Source: [splunk source]
Name:MacOS Keychains Dumped
id:dcb45a09-5e6f-441e-b2f8-cbbf923e36d9
version:3
date:2026-04-28
author:Raven Tait, Jamie Windley, Splunk
status:production
type:TTP
Description:Detects command-line attempts to access or dump macOS Keychain data using native utilities or direct file access. This includes credential dumping via the `security` utility (e.g. `dump-keychain -d`), bulk certificate export using `security find-certificate`, and direct file copying of Keychain database files using utilities such as `cat`. Keychain files are located in `~/Library/Keychains/`, `/Library/Keychains/`, and `/Network/Library/Keychains/`. This technique is commonly associated with post-exploitation credential harvesting, where an attacker with local access seeks to escalate privileges or move laterally by obtaining stored credentials for applications, Wi-Fi networks, system services, and certificates.
Data_source:
  • -Osquery Results
search:| tstats `security_content_summariesonly`
count min(_time) as firstTime
max(_time) as lastTime
values(Processes.parent_process) AS parent_process
values(Processes.parent_process_exec) AS parent_process_exec
values(Processes.parent_process_id) AS parent_process_id
values(Processes.parent_process_name) AS parent_process_name
values(Processes.parent_process_path) AS parent_process_path

FROM datamodel=Endpoint.Processes WHERE
(
Processes.process_path="/usr/bin/security"
AND
(
(
Processes.process="*dump-keychain*"
Processes.process="*-d*"
)
OR
(
Processes.process="*find-certificate*"
Processes.process="*-p*"
)
)
)
OR
Processes.process="*keychaindump*"
OR
(
Processes.process_name IN (
"cat",
"cp",
"dd",
"mv"
)
Processes.process="*Library/Keychains/*"
Processes.process="*.keychain*"
)
by Processes.action Processes.dest Processes.process Processes.process_hash
Processes.process_id Processes.process_name Processes.process_path
Processes.user Processes.vendor_product

| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `macos_keychains_dumped_filter`


how_to_implement:This detection uses osquery and endpoint security on MacOS. Follow the link in references, which describes how to setup process auditing in MacOS with endpoint security and osquery. Also the [TA-OSquery](https://splunkbase.splunk.com/app/8574) must be deployed across your indexers and universal forwarders in order to have the osquery data populate the data models.
known_false_positives:Administrators accessing keychain files for troubleshooting or endpoint management.
References:
  -https://osquery.readthedocs.io/en/stable/deployment/process-auditing/
  -https://gist.github.com/hfeeki/88c12f01d00534e09a84
  -https://ss64.com/mac/security-keychain-settings.html
  -https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1555.001/T1555.001.md
drilldown_searches:
name:'View the detection results for - "$user$" and "$dest$"'
search:'%original_detection_search% | search user = "$user$" dest = "$dest$"'
earliest_offset:'$info_min_time$'
latest_offset:'$info_max_time$'
name:'View risk events for the last 7 days for - "$user$" and "$dest$"'
search:'| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$user$", "$dest$") | stats count min(_time) as firstTime max(_time) as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories) as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`'
earliest_offset:'7d'
latest_offset:'0'
tags:
  analytic_story:
    - 'MacOS Privilege Escalation'
  asset_type:Endpoint
  mitre_attack_id:
    - 'T1555.001'
  product:
    - 'Splunk Enterprise'
    - 'Splunk Enterprise Security'
    - 'Splunk Cloud'
  security_domain:endpoint

tests:
name:'True Positive Test'
 attack_data:
  data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1555.001/osquery_keychains/osquery.log
  source: osquery
  sourcetype: osquery:results
manual_test:None

Related Analytic Stories


MacOS Privilege Escalation