Which versions of bigops-shared-ui are malicious?

The following npm versions of bigops-shared-ui are flagged malicious: 35.1.2. Treat any of these as compromised.

How do I remediate bigops-shared-ui if I installed it?

bigops-shared-ui is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed bigops-shared-ui — how do I know if it already compromised me?

If bigops-shared-ui 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-shared-ui part of a known attack campaign?

Yes — bigops-shared-ui is associated with the IN-MAL-2026-015742 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-shared-ui across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bigops-shared-ui (version 35.1.2).

Malicious package

bigops-shared-uinpm

Advisory published Aug 5, 2026Updated Aug 5, 2026

bigops-shared-ui is a confirmed malicious npm package (MAL-2026-13249) that steals credentials and exfiltrates sensitive data (malicious version 35.1.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bigops-shared-ui (npm)

MAL-2026-13249

Immediate action

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

npm uninstall bigops-shared-ui

What this malware does

On require of bigops-shared-ui, index.js loads./setup, which downloads a native executable from obfuscated Cloudflare Workers endpoints (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS TXT-record chunked fallback channel resolving base64 payload fragments under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. Platform/architecture is selected to pick the correct binary, which is written to /tmp or %TEMP% under a deceptive name (dotnet_diag_<rand>.exe or.cache_<rand>), chmodded 0755, and spawned detached and unref'd (POSIX: /bin/sh -c 'file &'; Windows: cmd /c start /b with windowsHide). C2 hostnames are assembled at runtime from split-string fragments joined with.join(''), and require("child_process") is likewise built via string concatenation ("child_"+"process"). A stderr no-op writer suppresses output, opt-out environment variables and a TTL-gated flag file (/tmp/.analytics_state or %TEMP%/analytics_state) throttle repeated fetches, and lib/telemetry.js contains the same child_process concatenation pattern. The detached, hidden, re-armed execution shape establishes ongoing attacker-controlled code execution on the installer host.

Malicious versions

1 flagged

35.1.2

Indicators of compromise (SHA-256)

2864e806fc8b9b1002cc51dc96a78aa9084f3d8ce133fc636ac21372c3cdfb59

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for bigops-shared-ui (version 35.1.2).
If you installed it — respond
bigops-shared-ui is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If bigops-shared-ui 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-shared-ui on npm has been identified as a malicious package (version 35.1.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015742

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks bigops-shared-ui-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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