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Malicious package

ctf-package-onetimeuseforctfnpm

Malicious code in ctf-package-onetimeuseforctf (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-2347
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall ctf-package-onetimeuseforctf

What this malware does

The package ctf-package-onetimeuseforctf was found to contain malicious code.

Malicious versions

5 flagged
99.99.9999.99.99999.991.99999.992.99999.993.999

Indicators of compromise (SHA-256)

6abd42d1b405c50944cf25ac6f1eb55ae0ddfb81dc184b9672111da2ab405527
2d37390fd81ab77282de711d615673122fd18763d31c720135595e40dd32a71b

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 ctf-package-onetimeuseforctf (5 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ctf-package-onetimeuseforctf across your stack and pipelines.

  2. If you installed it — respond

    Remove ctf-package-onetimeuseforctf 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 ctf-package-onetimeuseforctf 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 ctf-package-onetimeuseforctf 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. ctf-package-onetimeuseforctf on npm has been identified as a malicious package (versions 99.99.99, 99.99.999, 99.991.999, 99.992.999, 99.993.999 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01734

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks ctf-package-onetimeuseforctf-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.

ctf-package-onetimeuseforctf (npm) malicious package — MAL-2026-2347 | O3 Security