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Malicious package

Chronos.Contracts.NetNuGet

Malicious code in Chronos.Contracts.Net (NuGet) Remove it immediately and rotate any exposed credentials.

MAL-2024-4444
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove Chronos.Contracts.Net

Malicious versions

1 flagged
3.6.0.16

Indicators of compromise (SHA-256)

497ec799833a64e53642ff55d3d204687ec3f48a5eebb496c43934a32acd6523
fddfd119e6faffd75160d6c1ba1e018518db1a3ca8d95c716fcceff67684620f

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 Chronos.Contracts.Net (version 3.6.0.16). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging Chronos.Contracts.Net across your stack and pipelines.

  2. If you installed it — respond

    Remove Chronos.Contracts.Net 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 Chronos.Contracts.Net 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 Chronos.Contracts.Net 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. Chronos.Contracts.Net on NuGet has been identified as a malicious package (version 3.6.0.16 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-03236RLUA-2024-07652

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks Chronos.Contracts.Net-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.

Chronos.Contracts.Net (NuGet) malicious package — MAL-2024-4444 | O3 Security