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Malicious package

Blосkcore.Featսrеs.SignalRNuGet

Malicious code in Blосkcore.Featսrеs.SignalR (NuGet) Remove it immediately and rotate any exposed credentials.

MAL-2024-4372
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove Blосkcore.Featսrеs.SignalR

Malicious versions

1 flagged
1.0.8

Indicators of compromise (SHA-256)

ff9e20f6ceb2a2a8f4ca26d5de10a5bf29b2a426fc5970b7d15f80ce7b25f6e9

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 Blосkcore.Featսrеs.SignalR (version 1.0.8). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging Blосkcore.Featսrеs.SignalR across your stack and pipelines.

  2. If you installed it — respond

    Remove Blосkcore.Featսrеs.SignalR 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 Blосkcore.Featսrеs.SignalR 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 Blосkcore.Featսrеs.SignalR 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. Blосkcore.Featսrеs.SignalR on NuGet has been identified as a malicious package (version 1.0.8 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-03144

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks Blосkcore.Featսrеs.SignalR-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.

Blосkcore.Featսrеs.SignalR (NuGet) malicious package — MAL-2024-4372 | O3 Security