Suspicious LaunchAgent Masquerading as coreaudiod (via file_event)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1543.001Launch Agent
Priv Esc
- T1543.001Launch Agent
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of a LaunchAgent property list that masquerades as the legitimate coreaudiod system daemon inside a user LaunchAgents directory. The JINX-0164 actor dropped such plists to persist a macOS implant under a trusted-looking name. A user-writable LaunchAgent named after a core system daemon is a strong sign of persistence in a false context.

Reporting behind it

Related detections9 linkedT1543.001 — drag to rearrange

LaunchAgent or LaunchDaemon Persistence File Creation on macOS (via file_event)

Suspicious Persistence Load via Launchctl (via process_creation)

Masquerading Cuckoo Stealer LaunchAgent Masquerading as Homebrew Updater (via file_event)

Malicious Mini Shai-Hulud gh-token-monitor Persistence Service (via file_event)

Suspicious LaunchAgent or LaunchDaemon Load via launchctl

Suspicious macOS LaunchAgent or LaunchDaemon Plist Creation

Suspicious macOS Persistence via launchctl submit (via process_creation)

Suspicious macOS Trojan-Proxy LaunchAgent GoogleHelperUpdater Persistence (via file_event)

Malicious macOS LaunchAgent Persistence com.nvm.protocal.plist

Suspicious LaunchAgent Masquerading as coreaudiod (via file_event)

Pivot detection · T1543.001 · 9 related

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

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