Malicious ClickFix Stager Piping curl Output to osascript

ATT&CK techniques

Execution

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

What it detects

This rule detects a curl download whose output is piped into osascript, the ClickFix execution pattern that tricks macOS users into running a remote AppleScript stager. Tech-support impersonation lures instruct victims to paste a one-liner that fetches and runs the loader delivering a macOS infostealer. Fetch-and-execute of remote script through osascript is not legitimate user behavior and indicates initial compromise.

Reporting behind it

Related detections9 linkedT1059.002 — drag to rearrange

Malicious Data Exfiltration via curl with Stealer Specific BuildID Header

Suspicious osascript Password Prompt via AppleScript Display Dialog (via process_creation)

Malicious Sapphire Sleet curl to osascript Chain With mac-cur User-Agent (via process_creation)

Suspicious osascript Spawning Shell Interpreter on macOS

Suspicious AMOS Stealer Fake Password Prompt via osascript (via process_creation)

Suspicious osascript Spawning Shell curl to External Host on macOS (via process_creation)

Malicious Fake Zoom AppleScript Execution via Osascript

Suspicious osascript Fake Password Prompt by ClickLock macOS Stealer (via process_creation)

Malicious AppleScript Execution of curl-Fetched Shell Payload via osascript (via process_creation)

Malicious ClickFix Stager Piping curl Output to osascript

Pivot detection · T1059.002 · 9 related

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