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Malicious package

winston-prismanpm

Malicious code in winston-prisma (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-2805
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall winston-prisma

What this malware does

The package winston-prisma was found to contain malicious code.

Malicious versions

13 flagged
1.1.01.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.1.91.2.11.2.21.2.3

Indicators of compromise (SHA-256)

a02b7c9577c812343d6a0e06c2ed73966ccdd260a3187e11de54c1c5bd8e5bbb
8bc2a581514f0a9f03ad807946bb8aa90ed013936e91ed2a413ced0966986921

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 winston-prisma (13 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging winston-prisma across your stack and pipelines.

  2. If you installed it — respond

    Remove winston-prisma 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 winston-prisma 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 winston-prisma 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. winston-prisma on npm has been identified as a malicious package (versions 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, and 5 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02061

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks winston-prisma-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.

winston-prisma (npm) malicious package — MAL-2026-2805 | O3 Security