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Malicious package

passport811npm

Advisory published Updated

passport811 is a confirmed malicious npm package (MAL-2026-13832) that typosquats a legitimate package to trick installs (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in passport811 (npm)

MAL-2026-13832
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall passport811

What this malware does

[email protected] contains a single HTML file that impersonates a Cloudflare Turnstile 'Just a moment...' challenge. After the Turnstile callback fires, obfuscated JavaScript assembles a redirect URL to the Microsoft typosquat host microsofte.live (host string built at runtime from an obfuscator.io string-array lookup concatenated with the fragments 'ypt.micros' and 'ofte.live/') and calls window.location.replace() to send the browser there, forwarding the current query string. The package has no library or CLI surface and no lifecycle scripts — the HTML is not executed by npm install or by require(). The artifact is a hosted phishing kit distributed via the npm registry rather than code that attacks the machine performing the install.

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

1 flagged
1.0.0

Indicators of compromise (SHA-256)

b07dbba124b1abdf1e259a2d0233f2ac598111d06892529c8036851ae957b4ba
e96b8ce5a6dee87674b66e3aad6e3cf750c6e24243dd564922ff7b68be2f48b8

Detection & response playbook

Typosquat
  1. Find it

    Search your lockfiles and build artifacts for passport811 (version 1.0.0).

  2. If you installed it — respond

    passport811 is a typosquat — you almost certainly intended a legitimately-named package. Remove passport811, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

  3. Did it already run?

    If passport811 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. passport811 on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-hqm8-hrc2-wr63IN-MAL-2026-017438

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks passport811-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.

Explore

passport811 (npm) malicious package — MAL-2026-13832 | O3 Security