Which versions of box-ui-elements-usm are malicious?

The following npm versions of box-ui-elements-usm are flagged malicious: 99.3.1. Treat any of these as compromised.

How do I remediate box-ui-elements-usm if I installed it?

Remove box-ui-elements-usm 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 box-ui-elements-usm — how do I know if it already compromised me?

If box-ui-elements-usm 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 box-ui-elements-usm part of a known attack campaign?

Yes — box-ui-elements-usm is associated with the RLMA-2026-04968, RLUA-2026-06099 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 box-ui-elements-usm across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for box-ui-elements-usm (version 99.3.1).

Malicious package

box-ui-elements-usmnpm

Advisory published Jul 7, 2026Updated Sep 1, 2026

box-ui-elements-usm is a confirmed malicious npm package (MAL-2026-7228) that executes malicious code on install (malicious version 99.3.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in box-ui-elements-usm (npm)

MAL-2026-7228

Immediate action

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

npm uninstall box-ui-elements-usm

Malicious versions

1 flagged

99.3.1

Indicators of compromise (SHA-256)

a5bc10403c44b321be9c503e3e9940957214984de7be027ddf042b2a8f3611b4

0b5dfbfdb9845305b95812b3dc55f9e910ac18403aac0e7819e39be657874237

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for box-ui-elements-usm (version 99.3.1).
If you installed it — respond
Remove box-ui-elements-usm 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 box-ui-elements-usm 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. box-ui-elements-usm on npm has been identified as a malicious package (version 99.3.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04968RLUA-2026-06099

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks box-ui-elements-usm-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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