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Malicious package

ctf2libxmljs2npm

Malicious code in ctf2libxmljs2 (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-191571
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall ctf2libxmljs2

What this malware does

The package ctf2libxmljs2 was found to contain malicious code.

Malicious versions

1 flagged
0.30.2

Indicators of compromise (SHA-256)

d7b9e4fe10e07d12bf96ada0392b3d01a59a259dd554620116748f4803649aaf
de69afa73f1f4886ac05efb1fce080314b4a0bc5f0a122bb50e7bd03f945db9b

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 ctf2libxmljs2 (version 0.30.2). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ctf2libxmljs2 across your stack and pipelines.

  2. If you installed it — respond

    Remove ctf2libxmljs2 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 ctf2libxmljs2 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 ctf2libxmljs2 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. ctf2libxmljs2 on npm has been identified as a malicious package (version 0.30.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-05712

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks ctf2libxmljs2-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.

ctf2libxmljs2 (npm) malicious package — MAL-2025-191571 | O3 Security