Which versions of giantswarm are malicious?

The following npm versions of giantswarm are flagged malicious: 22.0.1. Treat any of these as compromised.

How do I remediate giantswarm if I installed it?

giantswarm establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

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

If giantswarm 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 giantswarm part of a known attack campaign?

Yes — giantswarm is associated with the IN-MAL-2026-009758 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 giantswarm across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for giantswarm (version 22.0.1).

Malicious package

giantswarmnpm

Advisory published Jul 12, 2026Updated Jul 12, 2026

giantswarm is a confirmed malicious npm package (MAL-2026-10203) that opens a backdoor for remote access (malicious version 22.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in giantswarm (npm)

MAL-2026-10203

Immediate action

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

npm uninstall giantswarm

What this malware does

The package declares a preinstall hook (node index.js) that runs automatically on npm install. index.js collects host reconnaissance — hostname, platform, arch, home directory, username/uid/gid/shell, whoami, id, and cwd — and POSTs the collected data as JSON to a hardcoded Burp Collaborator subdomain at https://w305i20ui5s5476lc3b998z28tek2bq0.oastify.com/detox56. The package ships with empty description, author, and license fields and no functional code beyond the beacon. The unscoped name giantswarm impersonates the Giant Swarm vendor namespace, consistent with a dependency-confusion attack targeting private @giantswarm/* scopes.

Malicious versions

1 flagged

22.0.1

Indicators of compromise (SHA-256)

75f3a244f2761c56347f695897a491d23ab04cafe1e5b0e46fd7d0d2c993f828

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for giantswarm (version 22.0.1).
If you installed it — respond
giantswarm establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If giantswarm 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. giantswarm on npm has been identified as a malicious package (version 22.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-009758

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks giantswarm-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

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