Which versions of @measures/responsive are malicious?

The following npm versions of @measures/responsive are flagged malicious: 99.99.9. Treat any of these as compromised.

How do I remediate @measures/responsive if I installed it?

Remove @measures/responsive 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 @measures/responsive — how do I know if it already compromised me?

If @measures/responsive 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 @measures/responsive part of a known attack campaign?

Yes — @measures/responsive is associated with the RLMA-2026-01034 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 @measures/responsive across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @measures/responsive (version 99.99.9).

Malicious package

@measures/responsivenpm

Advisory published Mar 18, 2026Updated Mar 23, 2026

@measures/responsive is a confirmed malicious npm package (MAL-2026-1630) that executes malicious code on install (malicious version 99.99.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @measures/responsive (npm)

MAL-2026-1630

Immediate action

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

npm uninstall @measures/responsive

What this malware does

The package @measures/responsive was found to contain malicious code.

Malicious versions

1 flagged

99.99.9

Indicators of compromise (SHA-256)

b3642338de990057b49a32b6bf133f2b16bd5df9ac1f103dd0e11517628598df

1e32ee5d76a578e04ae48dc0f9a6cea0cdfe505dd50a0e61b7d44e88dcbdf9a5

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @measures/responsive (version 99.99.9).
If you installed it — respond
Remove @measures/responsive 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 @measures/responsive 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. @measures/responsive on npm has been identified as a malicious package (version 99.99.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01034

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks @measures/responsive-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