Malicious Shai-Hulud npm Worm Marker via SHA1HULUD Process Name (via process_creation)

ATT&CK techniques

Initial Access → Execution

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
- T1059.007JavaScript
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a process launched with the SHA1HULUD marker on its command line, the self-identifying tag used by the Shai-Hulud npm supply-chain worm. The worm spawns processes named SHA1HULUD during propagation and token theft, so this constant is a high-confidence indicator of compromise on developer and CI hosts.

Reporting behind it

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Malicious Shai-Hulud npm Worm Marker via SHA1HULUD Process Name (via process_creation)

Pivot detection · T1059.007 · 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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