progerss-clinpm

progerss-cli is a typosquat of the popular cli-progress package that ships an obfuscated payload executed automatically on install.

The package borrows trust from its victim: repository.url is set to https://github.com/npkgz/cli-progress — the legitimate cli-progress project's own repository — and the author field is set to andidittrich (the real maintainer).

package.json defines scripts.postinstall: node build-helper.js, and declares form-data as its only runtime dependency (used for exfiltration).

build-helper.js (load gate): polls up to 31 times at 1.5 s intervals for form-data to resolve (require.resolve('form-data')), then require('./index.js'). This delays payload execution until the exfiltration dependency is fully installed, evading naive install-time analysis that runs before dependencies settle.

index.js: a ~273 KB obfuscated payload that performs data collection and form-data-based HTTP exfiltration.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Every published version of this package is considered malicious — remove it entirely.