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Malicious package

xa424234657567npm

xa424234657567 is a confirmed malicious npm package (MAL-2026-16277) that executes malicious code on install (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in xa424234657567 (npm)

MAL-2026-16277
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall xa424234657567

What this malware does

The package ships console.js, which when loaded in a browser on any host matching duel.com fetches https://unpkg.com/[email protected]/1.js and https://unpkg.com/[email protected]/ui.js and executes both via (0, eval)(...). On other hosts it redirects the page to duel.com. The declared main/unpkg entry 1.js is a ~740KB single-line Function("ZU7mhwD", "...") loader built from hex-escaped char arrays and a rotor-style decoder, with no readable source. Package metadata is placeholder-quality (name xa424234657567, no README, no repository), inconsistent with a library and consistent with a payload-delivery artifact. Consuming this package on a page served under duel.com results in remote, mutable, attacker-controlled code executing in the page context.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

0174148efc99cd1130b3b9f2c57599aac0f80ead454fd7dc0f397386db891b0c

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for xa424234657567 (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging xa424234657567 across your stack and pipelines.

  2. If you installed it — respond

    Remove xa424234657567 from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If xa424234657567 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks xa424234657567 before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. xa424234657567 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-2026-020175

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks xa424234657567-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

xa424234657567 (npm) malicious package — MAL-2026-16277 | O3 Security