Which versions of netstruct are malicious?

The following npm versions of netstruct are flagged malicious: 2.1.6, 2.1.8. Treat any of these as compromised.

How do I remediate netstruct if I installed it?

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

If netstruct 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 netstruct part of a known attack campaign?

Yes — netstruct is associated with the RLMA-2025-04604, RLUA-2026-02000 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 netstruct across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for netstruct (2 malicious versions).

Malicious package

netstructnpm

Advisory published Aug 14, 2025Updated Apr 16, 2026

netstruct is a confirmed malicious npm package (MAL-2025-27318) that executes malicious code on install (malicious versions 2.1.6, 2.1.8). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in netstruct (npm)

MAL-2025-27318

Immediate action

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

npm uninstall netstruct

What this malware does

The package netstruct was found to contain malicious code.

Malicious versions

2 flagged

2.1.62.1.8

Indicators of compromise (SHA-256)

5036655ad7dbac10e8f7f03a23671749ccd3edf34dfbf8d9bbb72af8770e5ab4

dbb848e952af823cd4b49b4a8e01cf24ff87024c5279dacd08b9d32e4021e41e

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for netstruct (2 malicious versions).
If you installed it — respond
Remove netstruct 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 netstruct 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. netstruct on npm has been identified as a malicious package (versions 2.1.6, 2.1.8 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-04604RLUA-2026-02000

References

reversinglabs.com

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks netstruct-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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