Suspicious npm Package Spawning cURL Download via Process Creation

ATT&CK techniques

Initial Access → Execution

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
- T1204.002Malicious File
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects an npm or node process spawning curl to fetch a remote payload, a supply chain execution technique in which Moonstone Sleet distributed malicious npm packages that pulled the SplitLoader malware during install. A package manager launching a download utility is unusual and can indicate a trojanized dependency.

Reporting behind it

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Pivot detection · T1204.002 · 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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