Which versions of chalk-aws are malicious?

The following RubyGems versions of chalk-aws are flagged malicious: 0.7.2. Treat any of these as compromised.

How do I remediate chalk-aws if I installed it?

Remove chalk-aws 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 chalk-aws — how do I know if it already compromised me?

If chalk-aws 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 chalk-aws part of a known attack campaign?

Yes — chalk-aws is associated with the RLMA-2025-06602 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 chalk-aws across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chalk-aws (version 0.7.2).

Malicious package

chalk-awsRubyGems

Advisory published Dec 23, 2025Updated Jul 23, 2026

chalk-aws is a confirmed malicious RubyGems package (MAL-2025-192895) that executes malicious code on install (malicious version 0.7.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in chalk-aws (RubyGems)

MAL-2025-192895

Immediate action

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

gem uninstall chalk-aws

Malicious versions

1 flagged

0.7.2

Indicators of compromise (SHA-256)

13ef573c570aac2d77839ebd335459894c859ca140f6479683c44e0835ec0584

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for chalk-aws (version 0.7.2).
If you installed it — respond
Remove chalk-aws 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 chalk-aws 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. chalk-aws on RubyGems has been identified as a malicious package (version 0.7.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06602

Credits

ReversingLabs · finder

Detect & block this

O3 blocks chalk-aws-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

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