NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
Malicious package

pentestlyio-testpackagenpm

Advisory published Updated

pentestlyio-testpackage is a confirmed malicious npm package (MAL-2025-192850) that executes malicious code on install (malicious versions 0.0.1, 0.0.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pentestlyio-testpackage (npm)

MAL-2025-192850
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall pentestlyio-testpackage

What this malware does

The package pentestlyio-testpackage was found to contain malicious code.

Malicious versions

2 flagged
0.0.10.0.2

Indicators of compromise (SHA-256)

5dc6e3e6722638b89ab41908c0a9641369b5b42b0b0523c356d28a842b1af2e5
c33a99a3bfd88931eb474977950169e0ee173b9f3df727cdcec54ec1fd3b1ed3

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for pentestlyio-testpackage (2 malicious versions).

  2. If you installed it — respond

    Remove pentestlyio-testpackage 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.

  3. Did it already run?

    If pentestlyio-testpackage 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. pentestlyio-testpackage on npm has been identified as a malicious package (versions 0.0.1, 0.0.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06446

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks pentestlyio-testpackage-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.

Explore

pentestlyio-testpackage (npm) malicious package — MAL-2025-192850 | O3 Security