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Part of a larger attack: @fdfe published 10 malicious packages. See the full campaign →
Malicious package

@fdfe/era-build-runtimenpm

@fdfe/era-build-runtime is a confirmed malicious npm package (MAL-2024-2311) that executes malicious code on install (malicious version 1.0.13). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @fdfe/era-build-runtime (npm)

MAL-2024-2311
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @fdfe/era-build-runtime

Malicious versions

1 flagged
1.0.13

Indicators of compromise (SHA-256)

61f5972d31919ecd38336a57e19b309e58c4c4c8bd093cb071396ca18ba70ba5
b9c072a3fe065497373aefa3d1e7bb741e03080e4a61504a5f57384c1a3b2b50
f2b75a707ecb692e06c0d295d2c462e1d8a300067b70f2b306689c352bc7c185

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 @fdfe/era-build-runtime (version 1.0.13). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @fdfe/era-build-runtime across your stack and pipelines.

  2. If you installed it — respond

    Remove @fdfe/era-build-runtime 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 @fdfe/era-build-runtime 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 @fdfe/era-build-runtime 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. @fdfe/era-build-runtime on npm has been identified as a malicious package (version 1.0.13 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-00074RLUA-2024-05924

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks @fdfe/era-build-runtime-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.

Explore

@fdfe/era-build-runtime (npm) malicious package — MAL-2024-2311 | O3 Security