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 Remote Script Piped to a Shell on macOS (via process_creation)

AppleScript do-shell-script Abuse via Osascript (via process_creation)

Suspicious AppleScript Payload Execution via osascript (macOS)

Suspicious AppleScript Execution Spawning a Shell via Osascript

Suspicious osascript Execution of Encoded AppleScript on macOS (via process_creation)

Suspicious Credential Prompt Phishing via osascript (via process_creation)

Suspicious Shell Execution Referencing Mounted DMG Volume via Terminal (macOS)

Suspicious osascript to zsh Executing Hidden Payload via Axios Compromise

Suspicious Osascript Muting System Volume via BANSHEE Infostealer

Malicious ClickFix Stager Piping curl Output to osascript

Pivot detection · T1059.002 · 9 related

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