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Malicious package

sp-web-utils-libnpm

sp-web-utils-lib is a confirmed malicious npm package (MAL-2025-48287) that executes malicious code on install (malicious version 99.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in sp-web-utils-lib (npm)

MAL-2025-48287
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall sp-web-utils-lib

What this malware does

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

1 flagged
99.0.0

Indicators of compromise (SHA-256)

18030241ea8f0cd79b1c6d323dfb7f1de0ede76c967166f73fcf51108f2ecc52
91a8cd0a3dc13d708df8f5f3a778443f2691c4ed0feef038241e0aacd3d5a745
496dc76c3332a6b6a1c7f731bb4ac0c3646c13ad570eb8aa2b2854ef1999dfdd

Detection & response playbook

Malicious package

  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for sp-web-utils-lib (version 99.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging sp-web-utils-lib across your stack and pipelines.

  2. If you installed it — respond

    Remove sp-web-utils-lib from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If sp-web-utils-lib was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks sp-web-utils-lib before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. sp-web-utils-lib on npm has been identified as a malicious package (version 99.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-jghj-m3jq-w3hcRLMA-2025-05515RLUA-2025-05951

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks sp-web-utils-lib-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
sp-web-utils-lib (npm) malicious package — MAL-2025-48287 | O3 Security