Which versions of paysera-checkout-modal are malicious?

The following npm versions of paysera-checkout-modal are flagged malicious: 99.9.9. Treat any of these as compromised.

How do I remediate paysera-checkout-modal if I installed it?

Remove paysera-checkout-modal 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 paysera-checkout-modal — how do I know if it already compromised me?

If paysera-checkout-modal 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 paysera-checkout-modal across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for paysera-checkout-modal (version 99.9.9).

Malicious package

paysera-checkout-modalnpm

Advisory published Dec 7, 2025Updated Dec 10, 2025

paysera-checkout-modal is a confirmed malicious npm package (MAL-2025-192368) that executes malicious code on install (malicious version 99.9.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in paysera-checkout-modal (npm)

MAL-2025-192368

Immediate action

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

npm uninstall paysera-checkout-modal

What this malware does

The package paysera-checkout-modal was found to contain malicious code.

The OpenSSF Package Analysis project identified 'paysera-checkout-modal' @ 99.9.9 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged

99.9.9

Indicators of compromise (SHA-256)

d82354334d472acf6da73f43e8ac61496f35a580a5cf13d3ff3730f734d8585e

1bb6d9d88b5364464913578a099da2b1259bed01c770b78797f9c7f97dd9ba67

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for paysera-checkout-modal (version 99.9.9).
If you installed it — respond
Remove paysera-checkout-modal 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 paysera-checkout-modal 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. paysera-checkout-modal on npm has been identified as a malicious package (version 99.9.9 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 paysera-checkout-modal-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