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Malicious package

@postman/pm-bin-macos-x64npm

Advisory published Updated

@postman/pm-bin-macos-x64 is a confirmed malicious npm package (MAL-2025-190905) that steals credentials and exfiltrates sensitive data (malicious versions 1.24.3, 1.24.4, 1.24.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @postman/pm-bin-macos-x64 (npm)

MAL-2025-190905
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @postman/pm-bin-macos-x64

What this malware does

The package @postman/pm-bin-macos-x64 was found to contain malicious code.

This package was compromised by the Sha1-Hulud: The Second Coming NPM worm. The malicious payload steals tokens and credentials and publishes them to GitHub. The worm will propogate itself to NPM packages the user owns and establish persistence is a GitHub action. The package may also destroy the user's home directory.

Malicious versions

3 flagged
1.24.31.24.41.24.5

Indicators of compromise (SHA-256)

7af6b141ac3ae548c7fadfe1523b270a35c69e8f5c20035f682e9ee726f1bdec
fc68f1c5673a6d5ec6eaeadc923661576cc0a728928adb32293caf9bd1f631e2

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for @postman/pm-bin-macos-x64 (3 malicious versions).

  2. If you installed it — respond

    @postman/pm-bin-macos-x64 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If @postman/pm-bin-macos-x64 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. @postman/pm-bin-macos-x64 on npm has been identified as a malicious package (versions 1.24.3, 1.24.4, 1.24.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @postman/pm-bin-macos-x64-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
@postman/pm-bin-macos-x64 (npm) malicious package — MAL-2025-190905 | O3 Security