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Detecting (Malicious) Unicode in GitHub PRs

Detecting Malicious Unicode in GitHub Pull Requests

This article will describe how you can utilize GitHub Actions to scan user-contributed PRs for unicode and automatically warn you if such commits contain (potentially invisible & malicious) unicode characters.

Why

Last month Trojan Source was published --- which described how malicious unicode characters could make source code appear benign, yet compile to something quite malicious.

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael


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