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Malicious package

jksandboxPyPI

Malicious code in jksandbox (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2024-5280
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall jksandbox

Malicious versions

1 flagged
99.0

Indicators of compromise (SHA-256)

dbac0ca64d8d3a36060a51649611f5bb540b9a529495ea9a47e4a094493fbbf7
b561326ab07ccbb35888f827598e20a3e7563a5ae1772e348b138d4175fdfcde

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 jksandbox (version 99.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging jksandbox across your stack and pipelines.

  2. If you installed it — respond

    Remove jksandbox 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 jksandbox 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 jksandbox 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. jksandbox on PyPI has been identified as a malicious package (version 99.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-04062RLUA-2024-08423

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks jksandbox-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.

jksandbox (PyPI) malicious package — MAL-2024-5280 | O3 Security