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Malicious package

lakk-analyticsnpm

Advisory published Updated

lakk-analytics is a confirmed malicious npm package (MAL-2026-13348) that opens a backdoor for remote access (malicious versions 9.9.0, 9.9.11). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in lakk-analytics (npm)

MAL-2026-13348
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall lakk-analytics

What this malware does

[email protected] runs node index.js from an npm install lifecycle hook, which loads ./lib/core and constructs a subdomain from the installer's OS username, hostname, and current working directory (with a timestamp and the static prefix asnbank), then issues a dns.resolve4() query against <prefix>.<user>.<host>.<cwd>.<ts>.oob.sl4x0.xyz. This leaks installer identity via DNS to an out-of-band canary domain on every install. The destination host oob.sl4x0.xyz and API surface (os, dns, process, userInfo, hostname, cwd) are hidden as hex code-point arrays reconstructed with String.fromCharCode in sibling modules lib/b02e30.js and lib/6ad264.js. The README explicitly claims 'No network requests', which directly contradicts the observed install-time DNS beacon.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

2 flagged
9.9.09.9.11

Indicators of compromise (SHA-256)

d9a1a1a5f0fd81e6ba6198e7f4cbdeab1c16b8ceed3dbb7becc6b4b6f611ad52
50b6f54438d307adc9e47e195f892bd555eacb68771cdd2bae6bd1252d190bd1
e26a5f6751ae80ae03def8e24964a540e1c892dd466f8f6b6cf71ecf0f666979
3e8a243c359f65967237a8fefc6b264c90ea946bdf6134b684d536342d5e82d8
7ece0a2e47846ba7ed4d0165f772204b8f9257feedc02f132c7566f727b2e866

Detection & response playbook

Backdoor / remote access
  1. Find it

    Search your lockfiles and build artifacts for lakk-analytics (2 malicious versions).

  2. If you installed it — respond

    lakk-analytics 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 lakk-analytics 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. lakk-analytics on npm has been identified as a malicious package (versions 9.9.0, 9.9.11 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015794GHSA-mx7q-w72x-jgrhIN-MAL-2026-018477RLMA-2026-06299RLUA-2026-10750

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks lakk-analytics-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

lakk-analytics (npm) malicious package — MAL-2026-13348 | O3 Security