OpenSSF/OSV advisory MAL-2026-6985 confirms this npm version as malicious. No concrete evidence of installer-side harm was identified for this package version. There are no indicators of credential theft, environment scraping, install-time remote code execution, hardcoded attacker-controlled C2 endpoints, silent-relay behavior, or namespace-abuse drop chains in the package's lifecycle scripts or import-time code paths.
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in promo-helper (npm)
Details
No concrete evidence of installer-side harm was identified for this package version. There are no indicators of credential theft, environment scraping, install-time remote code execution, hardcoded attacker-controlled C2 endpoints, silent-relay behavior, or namespace-abuse drop chains in the package's lifecycle scripts or import-time code paths.
## Source: ghsa-malware (92bdedecd4dde5267a7937a057b30f2feb9590e475bfca8b53dca7da89e330d8) 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.
Decision reason
OpenSSF Malicious Packages via OSV confirms promo-helper@1.0.5 as malicious (MAL-2026-6985): Malicious code in promo-helper (npm)