multiply-by-two
Advanced tools
Warning, this module has malicious behaviour. Read first.
This is a demonstration module used in my blog post on malicious node modules. If you import this module, it will return a function which multiplies a number by two. Additionally, it will attempt to hijack express in a manner that adds a malicious payload to every request which intercepts stripe's client side library. See the blog post for more details.
This code is explicitly designed to not be very copy-and-paste portable, and will likely fail when imported into a project that doesn't behave exactly the same as the companion repository for this project.
Although the payload is harmless and will only trigger an alert statement, please do not install this module unless you have evaluated it first and understand its behaviour. This exists on npm solely for research purposes as part of the companion repository, not for malicious usage.
FAQs
Malicious module that attacks express.js/stripe projects
We found that multiply-by-two demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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