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Malicious package

tiny-dom-focus-trapnpm

Advisory published Updated

tiny-dom-focus-trap is a confirmed malicious npm package (MAL-2026-17526) that opens a backdoor for remote access (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in tiny-dom-focus-trap (npm)

MAL-2026-17526
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall tiny-dom-focus-trap

What this malware does

The package is advertised as a focus-trap utility but thunderboltRegistry.js runs an IIFE at require time that uses child_process.execSync to run whoami, id, pwd, ifconfig / ip addr, hostname, and to read /etc/hosts, then sends each command's output as query parameters to http://dxpoc.gt.tc/callback.php via fetch. A separate beacon containing Node version, platform, and pid is also posted to the same endpoint. The package additionally impersonates Wix 'thunderbolt' internal registry module names (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry) and references static.parastorage.com manifest URLs, matching a dependency-confusion lure aimed at Wix build environments. Installing or importing this package causes the installer host's identity, network configuration, and /etc/hosts contents to be sent to an attacker-controlled host.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

84262096595a1e0ce09bbaa359930cd07cf420cc72545174ddc4f12c60bec962

Detection & response playbook

Backdoor / remote access

  1. Find it

    Search your lockfiles and build artifacts for tiny-dom-focus-trap (version 1.0.0).

  2. If you installed it — respond

    tiny-dom-focus-trap 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 tiny-dom-focus-trap 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. tiny-dom-focus-trap 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

IN-MAL-2026-020953

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks tiny-dom-focus-trap-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

Explore

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tiny-dom-focus-trap (npm) malicious package — MAL-2026-17526 | O3 Security