Malicious Shai-Hulud Self-Hosted GitHub Actions Runner Named SHA1HULUD (via process_creation)

ATT&CK techniques

Initial Access

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

What it detects

This rule detects registration or use of a self-hosted GitHub Actions runner named SHA1HULUD, a distinctive artifact of the Shai-Hulud 2.0 supply chain worm as it establishes persistence in victim GitHub organizations. Adversaries register attacker-controlled runners to execute workflows and exfiltrate secrets from CI pipelines, so the hardcoded runner name is a high-confidence indicator of an active compromise.

Reporting behind it

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Malicious Shai-Hulud Self-Hosted GitHub Actions Runner Named SHA1HULUD (via process_creation)

Pivot detection · T1195.002 · 9 related

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