Which versions of proleis-web-app are malicious?

The following npm versions of proleis-web-app are flagged malicious: 10.0.1, 10.1.0. Treat any of these as compromised.

How do I remediate proleis-web-app if I installed it?

Remove proleis-web-app 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 proleis-web-app — how do I know if it already compromised me?

If proleis-web-app 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 proleis-web-app part of a known attack campaign?

Yes — proleis-web-app is associated with the RLMA-2026-01511 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 proleis-web-app across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for proleis-web-app (2 malicious versions).

Malicious package

proleis-web-appnpm

Advisory published Mar 18, 2026Updated Mar 23, 2026

proleis-web-app is a confirmed malicious npm package (MAL-2026-1825) that executes malicious code on install (malicious versions 10.0.1, 10.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in proleis-web-app (npm)

MAL-2026-1825

Immediate action

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

npm uninstall proleis-web-app

What this malware does

The package proleis-web-app was found to contain malicious code.

Malicious versions

2 flagged

10.0.110.1.0

Indicators of compromise (SHA-256)

0c43ece641f556c4e85afa45a6427022a305d0cbe2f0e6642f02777ea24d6223

afd065de5d26ebde43c9fef2003ea3ffbc21bfa47120965cf1c6a893da876d33

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for proleis-web-app (2 malicious versions).
If you installed it — respond
Remove proleis-web-app 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 proleis-web-app 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. proleis-web-app on npm has been identified as a malicious package (versions 10.0.1, 10.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01511

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks proleis-web-app-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