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Malicious package

xrblocks-remote-controlnpm

Advisory published Updated

xrblocks-remote-control is a confirmed malicious npm package (MAL-2026-6530) that opens a backdoor for remote access (malicious version 22.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in xrblocks-remote-control (npm)

MAL-2026-6530
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall xrblocks-remote-control

What this malware does

Package xrblocks-remote-control ships a bin script that, when invoked (including via npx or unintended resolution against the xrblocks name), POSTs the basename of process.env.INIT_CWD (the installer's project directory name) plus a timestamp to a hardcoded external callback at https://deepbounty.dd06-dev.fr/cb/46b252ec-a089-4f22-8b5e-5cee945106dc. The package provides no advertised functionality — package.json self-describes as a 'Security PoC for Bug Bounty' and no main module is shipped; the bin's sole effect is the outbound beacon. The package name targets Google's xrblocks namespace as a dependency-confusion / typosquat probe. Regardless of whether the operator is a bug-bounty researcher, installers and build systems that resolve this package have a project identifier transmitted to a third-party host without consent.

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
22.0.0

Indicators of compromise (SHA-256)

6e20199ccf4c5557bf9d6bd0f17f0f74b47aa54389f22247523fb9145ef29def
de2e8b166cf80d83908ce089f14e154200213428f88c8949a64e946aa8c69185

Detection & response playbook

Backdoor / remote access
  1. Find it

    Search your lockfiles and build artifacts for xrblocks-remote-control (version 22.0.0).

  2. If you installed it — respond

    xrblocks-remote-control 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 xrblocks-remote-control 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. xrblocks-remote-control on npm has been identified as a malicious package (version 22.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-007642GHSA-24xr-qqmw-jvvf

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks xrblocks-remote-control-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

xrblocks-remote-control (npm) malicious package — MAL-2026-6530 | O3 Security