Suspicious AppleScript Payload Execution via osascript (macOS)

ATT&CK techniques

Execution → Cred Access

Recon
Resource Dev
Initial Access
Execution
- T1059.002AppleScript
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1555.003Credentials from Web Browsers
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects osascript executing a compiled AppleScript (.scpt) file, matching AppleScript payload delivery observed in fake macOS application installers distributing infostealers. Adversaries use .scpt files dropped from mounted DMG images to run malicious logic and harvest credentials. AppleScript execution of on-disk .scpt files outside trusted automation workflows is unusual and warrants review.

Reporting behind it

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Suspicious AppleScript Payload Execution via osascript (macOS)

Pivot detection · T1555.003 · 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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