Which versions of ms.analytics-web are malicious?

The following npm versions of ms.analytics-web are flagged malicious: 99.9.13. Treat any of these as compromised.

How do I remediate ms.analytics-web if I installed it?

Remove ms.analytics-web 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 ms.analytics-web — how do I know if it already compromised me?

If ms.analytics-web 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.

How do I find ms.analytics-web across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for ms.analytics-web (version 99.9.13).

Malicious package

ms.analytics-webnpm

Advisory published May 4, 2026Updated May 12, 2026

ms.analytics-web is a confirmed malicious npm package (MAL-2026-3338) that executes malicious code on install (malicious version 99.9.13). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ms.analytics-web (npm)

MAL-2026-3338

Immediate action

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

npm uninstall ms.analytics-web

What this malware does

The package ms.analytics-web was found to contain malicious code.

The OpenSSF Package Analysis project identified 'ms.analytics-web' @ 99.9.13 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged

99.9.13

Indicators of compromise (SHA-256)

35249931468fd68291141567ae436b4220f12fa0498d330bfc75ee82c772c1e7

f8603a11b43db05d179ab55b635a517ed40832c05fc4365a1ba69d2ec1eb5092

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for ms.analytics-web (version 99.9.13).
If you installed it — respond
Remove ms.analytics-web 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 ms.analytics-web 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. ms.analytics-web on npm has been identified as a malicious package (version 99.9.13 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

Amazon Inspector · finder
OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks ms.analytics-web-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