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Malicious package

nitro-bundled-depnpm

Advisory published Updated

nitro-bundled-dep is a confirmed malicious npm package (MAL-2026-17774) that opens a backdoor for remote access (malicious versions 0.0.1, 1.0.0, 1.1.0…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in nitro-bundled-dep (npm)

MAL-2026-17774
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall nitro-bundled-dep

What this malware does

The npm package [email protected] presents itself as a 'Compatibility shim' but ships a beacon that POSTs installer host metadata — hostname, install path, current working directory, and Node version — to the hardcoded bare-IP endpoint http://185.158.107.175:8787/_ah/dc over plain HTTP. The beacon in beacon.cjs is invoked from package.json's postinstall script, so it fires automatically on npm install, and is also invoked from index.js so it fires again whenever the module is required. The main module exports a Proxy that returns no-op functions for any property access, allowing a victim build that imports this name to continue without errors after the beacon has executed — the shape of a dependency-confusion / name-squat payload whose purpose is to confirm successful code execution inside a target build environment and report host identifiers to an attacker-controlled collector.

Malicious versions

5 flagged
0.0.11.0.01.1.02.0.199.0.1

Indicators of compromise (SHA-256)

0bbd4417bf91aba92399be259604511102ec5dfbacebe278a7922cf10c4deac5
43f38c7ac6c0c53ea6787893d1a02c96e0a328e447c151104791f5b1ec4be0a3
7291ba5dfedba6c562a9cf2641f3ec3f489d8d05721836f4fb2a1674ef4e808a
893585fb7fdf6e13f0b443e3bd8bd84e8ba1a7c88400ecf5aa9a144a06acd622
ebf09359ca313a9c519ccfce35a0abe94dc2c84ceadb367388c76415bd64cf60

Detection & response playbook

Backdoor / remote access
  1. Find it

    Search your lockfiles and build artifacts for nitro-bundled-dep (5 malicious versions).

  2. If you installed it — respond

    nitro-bundled-dep establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

  3. Did it already run?

    If nitro-bundled-dep was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. nitro-bundled-dep on npm has been identified as a malicious package (versions 0.0.1, 1.0.0, 1.1.0, 2.0.1, 99.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-021380IN-MAL-2026-021400IN-MAL-2026-021389IN-MAL-2026-021462IN-MAL-2026-021461

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks nitro-bundled-dep-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Explore

nitro-bundled-dep (npm) malicious package — MAL-2026-17774 | O3 Security