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Malicious package

markdown-to-htmlNuGet

Malicious code in markdown-to-html (NuGet) Remove it immediately and rotate any exposed credentials.

MAL-2025-2922
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove markdown-to-html

Malicious versions

3 flagged
1.0.01.0.301.0.32

Indicators of compromise (SHA-256)

a766ac9095cb35fab95d93a8585c328bc1140ca0dfbd308e93b31ab61c7a112c

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 markdown-to-html (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging markdown-to-html across your stack and pipelines.

  2. If you installed it — respond

    Remove markdown-to-html 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 markdown-to-html 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 markdown-to-html 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. markdown-to-html on NuGet has been identified as a malicious package (versions 1.0.0, 1.0.30, 1.0.32 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-02021

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks markdown-to-html-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.

markdown-to-html (NuGet) malicious package — MAL-2025-2922 | O3 Security