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MAL-2026-6563

Malicious code in @thone33/analytics-injector (npm)

Details

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## Source: amazon-inspector (dcef0ea3fd19d9b238a097485faaf7db52d5aa4363653fd7fb29f4c0ff251f92) Package presents itself as an 'analytics injection helper' with a no-op track() export, but its exported activate() function fetches a JavaScript file from https://raw.githubusercontent.com/Dennisfrr/c2-stager/main/the assessment.js (mutable main branch, no integrity check) and passes the response body directly to eval, with fetch errors silently swallowed. Any consumer that imports and invokes activate() executes attacker-controlled JavaScript with full Node process privileges, and the upstream content can change at any time without a package update. The cover-story naming (analytics-injector / track) alongside a remote source repository explicitly named c2-stager indicates deliberate misdirection rather than a legitimate loader pattern.

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Affected packages

npm / @thone33/analytics-injector
Introduced in: 0

No fixed version published yet for @thone33/analytics-injector (npm). Pin to a known-safe version or switch to an alternative.

References