Which versions of bigops-products-travel are malicious?

The following npm versions of bigops-products-travel are flagged malicious: 35.7.1. Treat any of these as compromised.

How do I remediate bigops-products-travel if I installed it?

Remove bigops-products-travel 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.

I already installed bigops-products-travel — how do I know if it already compromised me?

If bigops-products-travel 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.

Is bigops-products-travel part of a known attack campaign?

Yes — bigops-products-travel is associated with the IN-MAL-2026-015750 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find bigops-products-travel across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bigops-products-travel (version 35.7.1).

Malicious package

bigops-products-travelnpm

Advisory published Aug 5, 2026Updated Aug 5, 2026

bigops-products-travel is a confirmed malicious npm package (MAL-2026-13247) that executes malicious code on install (malicious version 35.7.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bigops-products-travel (npm)

MAL-2026-13247

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall bigops-products-travel

What this malware does

On require of the package's main entry, loader.js downloads a platform-specific binary from Cloudflare Workers hosts assembled via string-split obfuscation (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev), with a DNS TXT-record fallback channel over sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru that reconstructs a base64 payload from numbered subdomains. The fetched bytes are written to a disguised path (.cache<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmod 0755, and spawned detached via /bin/sh -c '<file> &' or cmd.exe /c start /b. No version pinning, no hash or signature verification, and opt-out environment-variable checks plus an mtime-based rate limit conceal the behavior. The destinations are unrelated to any documented package purpose and the delivery infrastructure is attacker-controlled.

Malicious versions

1 flagged

35.7.1

Indicators of compromise (SHA-256)

91399b954849c3483787f47cb7a54ed5784aba889c1ccafc13ff2f037b21af64

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for bigops-products-travel (version 35.7.1).
If you installed it — respond
Remove bigops-products-travel 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.
Did it already run?
If bigops-products-travel 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. bigops-products-travel on npm has been identified as a malicious package (version 35.7.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015750

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks bigops-products-travel-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.

Malware detection Runtime egress monitoring

Explore

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