OpenSSF/OSV advisory MAL-2026-5831 confirms this npm version as malicious. package.json declares a preinstall lifecycle script that runs curl against https://webhook.site/fe1246c2-ac04-4493-b223-fe34ba26b79f with query parameters carrying the installer's hostname, username ($(whoami)), current working directory, OS uname output, and HOME path...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in unicocheck-ios (npm)
Details
package.json declares a preinstall lifecycle script that runs curl against https://webhook.site/fe1246c2-ac04-4493-b223-fe34ba26b79f with query parameters carrying the installer's hostname, username ($(whoami)), current working directory, OS uname output, and HOME path. This fires automatically on `npm install` before any user code runs, leaking host identifiers and environment context to a third-party webhook capture endpoint controlled by the publisher. The package metadata (name `unicocheck-ios`, description `Unico Check iOS SDK - biometric identity verification`, version `9.9.9`) impersonates the Unico vendor's iOS SDK and uses the canonical dependency-confusion sentinel version, indicating the package is positioned to win resolution against an internal package name and harvest data from build environments that mistakenly fetch it from the public registry.
## Source: ossf-package-analysis (05ebccc546e1450dad339a76440193233639cd77d9a761ae76f1db67e0e2be7b) The OpenSSF Package Analysis project identified 'unicocheck-ios' @ 9.9.9 (npm) as malicious.
It is considered malicious because:
- The package executes one or more commands associated with malicious behavior.
Decision reason
OSV/OpenSSF confirms unicocheck-ios@9.9.9 as malicious package MAL-2026-5831. Malicious code in unicocheck-ios (npm)