Which versions of СatWinformUtіls are malicious?

The following NuGet versions of СatWinformUtіls are flagged malicious: 1.7.4. Treat any of these as compromised.

How do I remediate СatWinformUtіls if I installed it?

Remove СatWinformUtіls 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 СatWinformUtіls — how do I know if it already compromised me?

If СatWinformUtіls 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 СatWinformUtіls part of a known attack campaign?

Yes — СatWinformUtіls is associated with the RLMA-2024-02776, RLMA-2026-00007 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 СatWinformUtіls across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for СatWinformUtіls (version 1.7.4).

Malicious package

СatWinformUtіlsNuGet

Advisory published Jun 25, 2024Updated Mar 19, 2026

СatWinformUtіls is a confirmed malicious NuGet package (MAL-2024-4714) that executes malicious code on install (malicious version 1.7.4). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in СatWinformUtіls (NuGet)

MAL-2024-4714

Immediate action

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

remove СatWinformUtіls

Malicious versions

1 flagged

1.7.4

Indicators of compromise (SHA-256)

5c6facd5c5dce32e0369a3d2345ebbcdefcd45c03c085fc8479e565c37a76234

3788a2a8c2c9dc17c904c445afee523a9f596d292e8c7c52299634fe394a22af

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for СatWinformUtіls (version 1.7.4).
If you installed it — respond
Remove СatWinformUtіls 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 СatWinformUtіls 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. СatWinformUtіls on NuGet has been identified as a malicious package (version 1.7.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-02776RLMA-2026-00007

Credits

ReversingLabs · finder

Detect & block this

O3 blocks СatWinformUtіls-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

All malware advisories How O3 detects malware Vulnerability database