Suspicious macOS Login Keychain Access via Command Line

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1555.001Keychain
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects command line access to the user login keychain database, which the Atomic (AMOS) Stealer copies to harvest stored credentials and secrets. Direct references to login.keychain-db from shell tooling are unusual outside of backup or security software and warrant investigation for credential theft.

Reporting behind it

Related detections9 linkedT1555.001 — drag to rearrange

Malicious Credential Phishing Dialog via osascript

Malicious Keychain Archival for Credential Exfiltration

Suspicious macOS Keychain Credential Dumping via security find-generic-password

Suspicious Credential Archive Staging in tmp via process_creation

Malicious macOS Keychain Credential Theft via security find-generic-password (via process_creation)

Suspicious Non-Wallet Process Accessing Cryptocurrency Wallet Files

Suspicious Dscl Authonly Password Validation via BANSHEE Credential Phishing

Uncommon macOS Keychain Credential Access via Security Utility (via process_creation)

Malicious Keychain Credential Extraction via security Utility

Suspicious macOS Login Keychain Access via Command Line

Pivot detection · T1555.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

Full detection rule

Unlock this rule to view and copy it

The detection logic is included with a plan. Everything else — context, mappings and implementation details — stays free on this page.

Sign in for 3 free unlocks

Signing in gives you 3 unlocks to spend on any rule in the library. No card, and they do not expire.

Also included

Unlocked rules convert on this page — to Splunk SPL or Splunk — Raw Index SPL or Microsoft Sentinel KQL or Microsoft Sentinel ASIM ASIM KQL or Microsoft Defender XDR KQL or Elastic Security KQL or Elastic Security Lucene or Elastic Security ES|QL or CrowdStrike Falcon CQL or SentinelOne PowerQuery or Palo Alto Cortex XDR XQL or Carbon Black Cloud Platform Search or Carbon Black EDR Process Search or Google Security Operations UDM Search or IBM QRadar AQL or Sumo Logic Cloud SIEM Rules expression or Rapid7 InsightIDR LEQL or Graylog Search or OpenSearch Lucene or OpenSearch PPL PPL or Grafana Loki LogQL or SQLite SQL or Zircolite SQLite — with the log-source profile the engine picked, the field map it used, and everything it could not express. Converting a rule you have unlocked costs no further credit.

See it run on a free rule →Convert your own rule →