Which versions of СatUtіls are malicious?

The following NuGet versions of СatUtіls are flagged malicious: 2.5.8. Treat any of these as compromised.

How do I remediate СatUtіls if I installed it?

Remove СatUtіls 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.

I already installed СatUtіls — how do I know if it already compromised me?

If СatUtіls was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is СatUtіls part of a known attack campaign?

Yes — СatUtіls is associated with the RLMA-2024-02775, RLMA-2026-00006 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find СatUtіls across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for СatUtіls (version 2.5.8).

Malicious package

СatUtіlsNuGet

Advisory published Jun 25, 2024Updated Mar 19, 2026

СatUtіls is a confirmed malicious NuGet package (MAL-2024-4713) that executes malicious code on install (malicious version 2.5.8). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in СatUtіls (NuGet)

MAL-2024-4713

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

remove СatUtіls

Malicious versions

1 flagged

2.5.8

Indicators of compromise (SHA-256)

26b39667b010325e2130a4c8d12a49ff4572934c49d88bbb934abc31566afd01

195ecdfd6b23ea0957ef8e0f221a4200d247c3aaa4bc7b123979be4027963665

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for СatUtіls (version 2.5.8).
If you installed it — respond
Remove СatUtіls 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.
Did it already run?
If СatUtіls was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. СatUtіls on NuGet has been identified as a malicious package (version 2.5.8 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-02775RLMA-2026-00006

Credits

ReversingLabs · finder

Detect & block this

O3 blocks СatUtіls-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

Explore

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