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Malicious package

@service-suppliers/suppliersnpm

Malicious code in @service-suppliers/suppliers (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-4438
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @service-suppliers/suppliers

What this malware does

On npm install, scripts/postinstall.js performs two attacker-benefit actions against the installer. First, it scrapes installer-side credentials: it iterates process.env matching a sensitive-key list (npm_token, github_token, aws_access_key_id, aws_secret_access_key, artifactory_token, nexus_token, node_auth_token, npm_config__auth) and reads ~/.npmrc, /etc/npmrc,./.npmrc, and../.npmrc, then POSTs the collected secrets together with hostname, username, cwd, PATH, node/npm versions, default registry, and a private_registry_detected flag to https://oob.moika.tech/report. The registry-detection field is dependency-confusion targeting telemetry to identify high-value victims behind private registries. Second, it fetches a per-OS script from https://oob.moika.tech/payload/{linux,mac,win}, writes it to os.tmpdir() as ._service-suppliers_init.sh/.bat, chmods 0755, and spawns it via /bin/sh or cmd.exe with detached/stdio:ignore — an unpinned external host unrelated to the claimed publisher, with no hash verification. The package self-identifies its payload as 'dependency-confusion-npm' and the public scope @service-suppliers/suppliers appears to squat an internal namespace. The 'authorized testing' label in the source provides no protection to any unintended installer that resolves this version from the public registry.

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
9.9.10

Indicators of compromise (SHA-256)

41ce044d6dd8b4ef89acd4b335e67c8301487572c6be883ac2d46cab7bfc7345
a79ca8ef6257be2fbac9c361b969d9e63ce6a833e42dafa4b558e1f805276502
6ec168f76cb0912591c310c865e6c3e795b002b5d85d4ed470ed162612161bce

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @service-suppliers/suppliers (version 9.9.10). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @service-suppliers/suppliers across your stack and pipelines.

  2. If you installed it — respond

    @service-suppliers/suppliers is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If @service-suppliers/suppliers 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 @service-suppliers/suppliers 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. @service-suppliers/suppliers on npm has been identified as a malicious package (version 9.9.10 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-004749IN-MAL-2026-004748GHSA-ppcx-6vx9-76mf

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @service-suppliers/suppliers-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

@service-suppliers/suppliers (npm) malicious package — MAL-2026-4438 | O3 Security