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

PremiumReviewedSigma · High · v1
Product
macos
Category
process_creation
Author
HuntRule
Published
2026-09-21
Updated
2026-09-21

ATT&CK techniques

Cred Access
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects abuse of the macOS security command to dump a Chrome keychain secret in plaintext using find-generic-password with the -ga flag. Poseidon Stealer runs this to extract the Chrome Safe Storage key so it can decrypt saved browser credentials. Scripted keychain access targeting browser entries is a reliable sign of credential theft on macOS.

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
Suspicious macOS Login Keychain Access via Command Line
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
Malicious macOS Keychain Credential Theft via security find-generic-password (via process_creation)
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.