Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
Malicious package

Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.CsvNuGet

Malicious code in Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv (NuGet) Remove it immediately and rotate any exposed credentials.

MAL-2024-4187
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv

Malicious versions

1 flagged
3.0.1

Indicators of compromise (SHA-256)

67de6522e095c9cc9fab5f5507480769183e788f5b93d30436a5e601f1a7fa53

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 Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv (version 3.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv across your stack and pipelines.

  2. If you installed it — respond

    Remove Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv 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 Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv 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 Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv 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. Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv on NuGet has been identified as a malicious package (version 3.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-02958

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv-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.

Malware detection Runtime egress monitoring
Be.Vlaanԁeren.Basisregisters.AspNetCore.Mvс.Formatters.Csv (NuGet) malicious package — MAL-2024-4187 | O3 Security