ChainCatcher report: According to MistEye, a threat monitoring system under blockchain security firm SlowMist (@SlowMist_Team), a highly sophisticated npm worm named “Mini Shai-Hulud” is spreading through well-known developer projects such as TanStack, UiPath, and DraftLab. Attackers have compromised GitHub credentials and published malicious packages disguised as legitimate updates, embedding a hidden script, router_init.js, which silently executes in CI/CD environments like GitHub Actions. The script is designed to steal CI/CD secrets, cloud infrastructure credentials, and cryptocurrency wallet information, using GitHub’s own infrastructure to exfiltrate data. SlowMist has shared relevant threat intelligence (IOCs) with clients and recommends that projects using the affected packages immediately scan their CI/CD pipelines for the presence of router_init.js, rotate all exposed GitHub, cloud service, and cryptocurrency credentials, and continuously monitor development environments for anomalous background activity.
SlowMist Discovers High-Risk npm Worm 'Mini Shai-Hulud' Stealing CI/CD and Wallet Data
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Summary
SlowMist has identified a high-risk npm worm named 'Mini Shai-Hulud' spreading through developer tooling in projects such as TanStack and UiPath. The worm uses stolen GitHub credentials to publish malicious packages containing a hidden script, router_init.js, which steals CI/CD keys, cloud infrastructure credentials, and wallet data. The script exfiltrates on-chain data via GitHub infrastructure. SlowMist has shared threat intelligence with clients and urged affected projects to scan for the script, rotate credentials, and monitor development environments for unusual activity.
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