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Malicious package

react-native-bright-sdknpm

Advisory published Updated

react-native-bright-sdk is a confirmed malicious npm package (MAL-2026-18290) that opens a backdoor for remote access (malicious version 9000.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in react-native-bright-sdk (npm)

MAL-2026-18290
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall react-native-bright-sdk

What this malware does

The package declares a preinstall lifecycle hook that executes canary.js on npm install. The script collects os.hostname() and an install timestamp, base64-encodes the JSON payload, and transmits it via HTTPS GET to the hardcoded endpoint https://estimator-nemeses-unwatched.ngrok-free.dev/canary. The destination is an anonymous, ephemeral ngrok tunnel unrelated to any legitimate publisher infrastructure, and the beacon fires automatically without user opt-in. The package ships no functional code justifying this network activity; it exists only to send the install signal. The version number (9000.0.0) and name resemble a dependency-confusion / namespace-reservation shape targeting internal package resolution.

Malicious versions

1 flagged
9000.0.0

Indicators of compromise (SHA-256)

4208eebeabe05114e68e0b4abf11c9ff176594200c28400fe5c82deb3a5c8f55

Detection & response playbook

Backdoor / remote access

  1. Find it

    Search your lockfiles and build artifacts for react-native-bright-sdk (version 9000.0.0).

  2. If you installed it — respond

    react-native-bright-sdk 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 react-native-bright-sdk 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. react-native-bright-sdk on npm has been identified as a malicious package (version 9000.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-021709

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks react-native-bright-sdk-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

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