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Malicious package

AvalonEdit.NetNuGet

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

MAL-2024-4012
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove AvalonEdit.Net

Malicious versions

108 flagged
6.3.0.906.3.16.3.26.3.36.3.46.3.56.3.66.3.76.3.86.3.96.3.106.3.116.3.126.3.136.3.146.3.156.3.166.3.176.3.186.3.196.3.206.3.216.3.226.3.236.3.246.3.256.3.266.3.276.3.286.3.296.3.306.3.316.3.326.3.336.3.346.3.356.3.366.3.376.3.386.3.396.3.406.3.416.3.426.3.436.3.446.3.456.3.466.3.476.3.486.3.496.3.506.3.516.3.526.3.536.3.546.3.556.3.566.3.576.3.586.3.596.3.606.3.616.3.626.3.636.3.646.3.656.3.666.3.676.3.686.3.696.3.706.3.716.3.726.3.736.3.746.3.756.3.766.3.776.3.786.3.796.3.806.3.816.3.826.3.836.3.846.3.856.3.866.3.876.3.886.3.896.3.906.3.916.3.926.3.936.3.946.3.956.3.966.3.976.3.986.3.996.3.1008.3.0.908.3.0.918.3.0.928.3.0.938.3.0.948.4.0.958.4.0.96

Indicators of compromise (SHA-256)

2e95b37e30089c0c3e3a51c671f8fafabe6d763609f0f20813959398837ce17a
d8321ea214bf39e9bcc468bf813deeb4a81cc43efabf6ddef9b3ba6c650aeefd

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 AvalonEdit.Net (108 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging AvalonEdit.Net across your stack and pipelines.

  2. If you installed it — respond

    Remove AvalonEdit.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 AvalonEdit.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 AvalonEdit.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. AvalonEdit.Net on NuGet has been identified as a malicious package (versions 6.3.0.90, 6.3.1, 6.3.2, 6.3.3, 6.3.4, 6.3.5, 6.3.6, 6.3.7, and 100 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-02802RLUA-2024-07634

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks AvalonEdit.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.

AvalonEdit.Net (NuGet) malicious package — MAL-2024-4012 | O3 Security