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Malicious package

Rimworld.References.NetNuGet

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

MAL-2024-4630
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove Rimworld.References.Net

Malicious versions

10 flagged
0.1.31.0.61.6.21.8.22.5.04.1.24.3.06.4.67.5.08.5.0

Indicators of compromise (SHA-256)

91d364f2721b88150ee20bd15e9b5514f31a8456168cdec8e916d7adca350d80
b55af2e3e97f7f090e1e1405bd53d285ea23e0ec220061be9d4db807ae0791a6

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 Rimworld.References.Net (10 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging Rimworld.References.Net across your stack and pipelines.

  2. If you installed it — respond

    Remove Rimworld.References.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 Rimworld.References.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 Rimworld.References.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. Rimworld.References.Net on NuGet has been identified as a malicious package (versions 0.1.3, 1.0.6, 1.6.2, 1.8.2, 2.5.0, 4.1.2, 4.3.0, 6.4.6, and 2 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-03417RLUA-2024-07721

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks Rimworld.References.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.

Rimworld.References.Net (NuGet) malicious package — MAL-2024-4630 | O3 Security